CASCACascade Atlas

Evidence dossier

CVE-2021-39144

XStream is vulnerable to a Remote Command Execution attack

Exploited in the wild (CISA KEV since Mar 10, 2023). NVD reports CVSS 3.1 8.5. EPSS estimates 98.1% exploit likelihood as of Jul 26, 2026.

90.0–90.4Priority evidence range
Evidence current through Aug 27, 2026, 6:09 PM UTC

As of Aug 27, 2026

Normalized restatement

XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker has sufficient rights to execute commands of the host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.

State
PUBLISHED
Published
Aug 23, 2021
Updated
Oct 21, 2025
Evidence coverage
99%

Evidence chronology

What was known when

Download this view's receipt →
  1. Source dateSource date omittedFirst observed by CASCA
    CISA-ADP

    Record text: CISA ADP Vulnrichment

    Inspect raw assertion
    Field
    container
    Value
    CISA ADP Vulnrichment
    Original evidence ↗
  2. Source dateSource date omittedFirst observed by CASCA
    CVE Program

    Record text: CVE Program Container

    Inspect raw assertion
    Field
    container
    Value
    CVE Program Container
    Original evidence ↗
  3. Source dateSource date omittedFirst observed by CASCA
    GitHub_M

    Record text: XStream is vulnerable to a Remote Command Execution attack

    Inspect raw assertion
    Field
    container
    Value
    XStream is vulnerable to a Remote Command Execution attack
    Original evidence ↗
  4. Source dateFirst observed by CASCA
    CISA KEV

    Exploitation cataloged: XStream Remote Code Execution Vulnerability

    Inspect raw assertion
    Field
    observed_exploitation
    Value
    XStream Remote Code Execution Vulnerability
    Original evidence ↗
  5. Source dateFirst observed by CASCA
    FIRST EPSS

    EPSS score: 98.12% probability · 99.91th percentile

    Inspect raw assertion
    Field
    model_probability
    Value
    Probability 0.981240000000; percentile 0.999090000000
    Original evidence ↗
ExploitationCatalog member

CISA KEV · catalog date Mar 10, 2023 · first observed Jul 19, 2026

Exploit likelihood98.12%

FIRST EPSS · score date Jul 26, 2026 · 99.9th percentile · first observed Jul 27, 2026

SeverityCVSS 8.5

NVD · CVSS 3.1 · first observed Jul 19, 2026 · same-version scores align in this snapshot

Evidence detail

Source limits and decisions

Why each evidence state has this value

casca-unknown-reasons-v1
Exploitation statusEvidence supported

Eligible evidence is present for this bounded claim.

Revision
evidence-policy-v1.1.0
Cutoff
Aug 27, 2026
Resolution
None
Exploit likelihoodEvidence supported

Eligible evidence is present for this bounded claim.

Revision
evidence-policy-v1.1.0
Cutoff
Aug 27, 2026
Resolution
None
Severity assessmentEvidence supported

Eligible evidence is present for this bounded claim.

Revision
casca-direct-cvss-eligibility-v1
Cutoff
Aug 27, 2026
Resolution
None
Affected productsSource-reported scope

The cited source assertion is retained while canonical product linkage remains open.

Revision
casca-factor-d-obligations-v1
Cutoff
Aug 27, 2026
Resolution
Resolve identity

Source comparison

Who said what

CISA-ADPIndependent enrichment
Record text

CISA ADP Vulnrichment

Inspect raw assertion
Field
container
Value
CISA ADP Vulnrichment
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CVE ProgramDerivative copy
Record text

CVE Program Container

Inspect raw assertion
Field
container
Value
CVE Program Container
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
GitHub_MOriginal assertion
Record text

XStream is vulnerable to a Remote Command Execution attack

Inspect raw assertion
Field
container
Value
XStream is vulnerable to a Remote Command Execution attack
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CISA KEVOriginal assertion
Exploitation cataloged

XStream Remote Code Execution Vulnerability

Inspect raw assertion
Field
observed_exploitation
Value
XStream Remote Code Execution Vulnerability
Source dateFirst observed by CASCAOriginal evidence ↗
FIRST EPSSOriginal assertion
EPSS score

98.12% probability · 99.91th percentile

Inspect raw assertion
Field
model_probability
Value
Probability 0.981240000000; percentile 0.999090000000
Source dateFirst observed by CASCAOriginal evidence ↗

Applicability

Cited product scope

Trace impact →
36Underlying assertions
15Canonical products
36Target assertions
0Constraint assertions

Grouped from 5 configuration nodes in this exact snapshot. Visual grouping is navigational; asset exposure and root cause require cited evidence.

Identity source boundaries
  • Cpe dictionary1,775,266 records · observed through 2026-07-21T06:45:29.809Z27d65b0f-b718-4b4f-bb79-c47c68d09dfa
  • Cpe match643,502 records · observed through 2026-07-21T08:13:17.697Z955dae73-7302-438b-aee1-058d7cc5d48e

16 scope groups

GitHub_M · source assertedx-streamxstreamDirect source scope
Affected: < 1.4.18
Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion[{"status": "affected", "version": "< 1.4.18"}]
NVD CPE · OPERATING SYSTEMdebiandebian_linuxVulnerable target · 3 assertions
Version 10.0; Version 11.0; Version 9.0Canonical identity product-3ccb4bc87dfae98fa2f2a06435fe5b3d9be78572fb958a89f2d7a96b4066447eLinked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 2
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    fa6feec2-9f11-4643-8827-749718254fed
  2. cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    deece5fc-cacf-4496-a3e7-164736409252
  3. cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 1
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    07b237a9-69a3-4a9c-9da0-4e06bd37ae73
NVD CPE · OPERATING SYSTEMfedoraprojectfedoraVulnerable target · 3 assertions
Version 33; Version 34; Version 35Canonical identity product-c96c7662a6606ed7594747da3d7ba9ee3a9758ab11658f6a3f42616361472e47Linked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    2 · node/0 · match 1
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    a930e247-0b43-43cb-98ff-6ce7b8189835
  2. cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    2 · node/0 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    e460aa51-fcda-46b9-ae97-e6676aa5e194
  3. cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    2 · node/0 · match 2
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    80e516c0-98a4-4ade-b69f-66a772e2baaa
NVD CPE · APPLICATIONnetappsnapmanagerVulnerable target · 2 assertions
Version not applicableCanonical identity product-ec38e3f02b7b334dbd1d5af1ae10399a43b703b7a4101c35fff656e228b8b38bLinked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:a:netapp:snapmanager:-:*:*:*:*:sap:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 1
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    64de38c8-94f1-4860-b045-f33928f676a8
  2. cpe:2.3:a:netapp:snapmanager:-:*:*:*:*:oracle:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    26a2b713-7d6d-420a-93a4-e0d983c983df
NVD CPE · APPLICATIONoraclebusiness_activity_monitoringVulnerable target · 1 assertions
Version 12.2.1.4.0Canonical identity product-35b2b66b8d98b82f58759489bf6f7923d64d6d3c0e9c6d218e7c945dce7eecc0Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:oracle:business_activity_monitoring:12.2.1.4.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    ba8461a2-428c-4817-92a9-0c671545698d
NVD CPE · APPLICATIONoraclecommerce_guided_searchVulnerable target · 1 assertions
Version 11.3.2Canonical identity product-1323c9f3f66ff9986b56e8926256e83e67a43a9bf73204bf45f6cf1022805174Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:oracle:commerce_guided_search:11.3.2:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 1
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    2a3622f5-5976-4bbc-a147-fc8a6431ea79
NVD CPE · APPLICATIONoraclecommunications_billing_and_revenue_management_elastic_charging_engineVulnerable target · 2 assertions
Version 11.3; Version 12.0Canonical identity product-dea20c80858bbd6e6eabbcd185f361e4d609a9a22b02d35be7fa6c8bf8d7443dLinked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:a:oracle:communications_billing_and_revenue_management_elastic_charging_engine:11.3:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 2
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    5a9e4125-b744-4a9d-bfe6-5d82939958fd
  2. cpe:2.3:a:oracle:communications_billing_and_revenue_management_elastic_charging_engine:12.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 3
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    261212bd-125a-487f-97e8-a9587935dfe8
NVD CPE · APPLICATIONoraclecommunications_cloud_native_core_automated_test_suiteVulnerable target · 1 assertions
Version 1.9.0Canonical identity product-2df9a6c32a69a473630d1002e16384828fb2dfd0bd0fe63d33dbead65a380413Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:oracle:communications_cloud_native_core_automated_test_suite:1.9.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 4
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    a4ca84d6-f312-4c29-a02b-050fcb7a902b
NVD CPE · APPLICATIONoraclecommunications_cloud_native_core_binding_support_functionVulnerable target · 1 assertions
Version 1.10.0Canonical identity product-8f636e0be037da6bf7c0c258d9b119655a5b5c3ceff4bd38c8b31486a91bdd3aLinked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:1.10.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 5
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    b6b6fe82-7bfa-481d-99d6-789b146ca18b
NVD CPE · APPLICATIONoraclecommunications_cloud_native_core_policyVulnerable target · 1 assertions
Version 1.14.0Canonical identity product-4906a179e2e22d81b3662b3c3400d77ff228001efb0bd2788c20df60ade3ecf4Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.14.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 6
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    4479f76a-4b67-41cc-98c7-c76b81050f8e
NVD CPE · APPLICATIONoraclecommunications_unified_inventory_managementVulnerable target · 5 assertions
Version 7.3.4; Version 7.3.5; Version 7.4.0; Version 7.4.1; Version 7.4.2Canonical identity product-7c46aad31fff3a518404ae5e4975d355e472ccec48579eb65a862ee12e43bd7eLinked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:a:oracle:communications_unified_inventory_management:7.4.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 9
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    539da24f-e3e0-4455-84c6-a9d96cd601b3
  2. cpe:2.3:a:oracle:communications_unified_inventory_management:7.4.2:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 11
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    e43d793a-7756-4d58-a8ed-72dc4ec9cea7
  3. cpe:2.3:a:oracle:communications_unified_inventory_management:7.3.4:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 7
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    0d299528-8ef0-49af-9bde-4b6c6b1da36c
  4. cpe:2.3:a:oracle:communications_unified_inventory_management:7.3.5:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 8
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    17a91fd9-9f77-42d3-a4d9-48bc7568ade1
  5. cpe:2.3:a:oracle:communications_unified_inventory_management:7.4.1:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 10
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    a7637f8b-15f1-42e2-be18-e1ff7c66587d
NVD CPE · APPLICATIONoracleretail_xstore_point_of_serviceVulnerable target · 5 assertions
Version 16.0.6; Version 17.0.4; Version 18.0.3; Version 19.0.2; Version 20.0.1Canonical identity product-c04567699fe15f01ca354326b240a6ee6547e2c9ce5ee394b481a5e585d56900Linked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:a:oracle:retail_xstore_point_of_service:20.0.1:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 16
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    a69fb468-eaf3-4e67-95e7-df92c281c1f1
  2. cpe:2.3:a:oracle:retail_xstore_point_of_service:16.0.6:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 12
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    490b2c44-cecd-4551-b04f-4076d0e053c7
  3. cpe:2.3:a:oracle:retail_xstore_point_of_service:19.0.2:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 15
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    073fea23-e46a-4c73-9d29-95cff4f5a59d
  4. cpe:2.3:a:oracle:retail_xstore_point_of_service:17.0.4:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 13
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    dec41eb8-73b4-4bdf-9321-f34ec0baf9e6
  5. cpe:2.3:a:oracle:retail_xstore_point_of_service:18.0.3:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 14
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    48efc111-b01b-4c34-87e4-d6b2c40c0122
NVD CPE · APPLICATIONoracleutilities_frameworkVulnerable target · 7 assertions
Version 4.2.0.2.0; Version 4.2.0.3.0; Version 4.3.0.1.0; Version 4.3.0.6.0; Version 4.4.0.0.0; Version 4.4.0.2.0; Version 4.4.0.3.0Canonical identity product-c4dc0bf021423ad0be4faaa4d1ede23abd49525c014e8606392b59645cee31b2Linked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:a:oracle:utilities_framework:4.3.0.6.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 20
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    8df02546-3f0d-4fdd-89b1-8a3fe43fb5bf
  2. cpe:2.3:a:oracle:utilities_framework:4.4.0.0.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 21
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    3f906f04-39e4-4be4-8a73-9d058aaadb43
  3. cpe:2.3:a:oracle:utilities_framework:4.2.0.2.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 17
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    5435b365-bff3-4a9e-b45c-42d8f1e20fb7
  4. cpe:2.3:a:oracle:utilities_framework:4.2.0.3.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 18
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    1fac3840-2cf8-44ce-81bb-eeebda00a34a
  5. cpe:2.3:a:oracle:utilities_framework:4.4.0.2.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 22
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    7b393a82-476a-4270-a903-38ed4169e431
  6. cpe:2.3:a:oracle:utilities_framework:4.4.0.3.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 23
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    85cae52b-c2ca-4c6b-a0b7-2b9d6f0499e2
  7. cpe:2.3:a:oracle:utilities_framework:4.3.0.1.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 19
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    900521a0-453c-4d97-b5eb-badf0245370d
NVD CPE · APPLICATIONoracleutilities_testing_acceleratorVulnerable target · 1 assertions
Version 6.0.0.1.1Canonical identity product-8458b355e6bb1531c358968b467b5203071ffd7dfa47a85852e2a5fa9574bfecLinked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:oracle:utilities_testing_accelerator:6.0.0.1.1:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 24
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    a3ed272c-a545-4f8c-86c0-2736b3f2dcaf
NVD CPE · APPLICATIONoraclewebcenter_portalVulnerable target · 2 assertions
Version 12.2.1.3.0; Version 12.2.1.4.0Canonical identity product-097b3ff9f950a0e93c521de9b0cace29ad56c19373235be54d569cd99532e9f1Linked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:a:oracle:webcenter_portal:12.2.1.4.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 26
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    5a502118-5b2b-47ae-82ec-1999bd841103
  2. cpe:2.3:a:oracle:webcenter_portal:12.2.1.3.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 25
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    d6a4f71a-4269-40fc-8f61-1d1301f2b728
NVD CPE · APPLICATIONxstreamxstreamVulnerable target · 1 assertions
Any version (unconstrained) (< 1.4.18)Canonical identity product-509fccecd57504d6754fa5e63430bebc7ac2521a1430a67b897a18adf028762eLinked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:xstream:xstream:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 0
    Logic
    OR
    Version bounds
    through excluding 1.4.18
    Match ID
    a01843b3-11e1-4cd5-9c77-cc57b908b845

Affected-product evidence

Accepted scope and product mapping

15 canonical links · 1 source-reported links

Mapping establishedEvidence supported

vendor-b1377626da187dbea1eeb98f365c57a3dcbeccfdc2a7d3471e94ece7b6f88e55 · product-097b3ff9f950a0e93c521de9b0cace29ad56c19373235be54d569cd99532e9f1

Source class
Nvd cpe vulnerable target
Assertions
2
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
33b9172b-cfa9-4cd9-84fb-d12c1045fa984ffe1bed-db7c-40ee-b328-6f6d930680ad
Mapping establishedEvidence supported

vendor-b1377626da187dbea1eeb98f365c57a3dcbeccfdc2a7d3471e94ece7b6f88e55 · product-1323c9f3f66ff9986b56e8926256e83e67a43a9bf73204bf45f6cf1022805174

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
2d5543d2-3841-47fe-9aef-21d71d9f568e
Mapping establishedEvidence supported

vendor-b1377626da187dbea1eeb98f365c57a3dcbeccfdc2a7d3471e94ece7b6f88e55 · product-2df9a6c32a69a473630d1002e16384828fb2dfd0bd0fe63d33dbead65a380413

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
4e0ae630-06d8-4c38-b92f-6fcfbfa03434
Mapping establishedEvidence supported

vendor-b1377626da187dbea1eeb98f365c57a3dcbeccfdc2a7d3471e94ece7b6f88e55 · product-35b2b66b8d98b82f58759489bf6f7923d64d6d3c0e9c6d218e7c945dce7eecc0

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
d923cbb2-b13b-46ec-877d-2664b0b58185
Mapping establishedEvidence supported

vendor-66ae8c5e06427f7450637d18322b0dc411c0b469d940341cf076a620d444fe3c · product-3ccb4bc87dfae98fa2f2a06435fe5b3d9be78572fb958a89f2d7a96b4066447e

Source class
Nvd cpe vulnerable target
Assertions
3
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
6abfd08e-46dd-4e95-9411-2791da069b81958c5a70-c9d2-4f17-a400-5da0698bd1c6e6214afd-6909-4a30-8b6d-43196e996667
Mapping establishedEvidence supported

vendor-b1377626da187dbea1eeb98f365c57a3dcbeccfdc2a7d3471e94ece7b6f88e55 · product-4906a179e2e22d81b3662b3c3400d77ff228001efb0bd2788c20df60ade3ecf4

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
3785c09b-c81b-4f37-adbf-3ce45a87cde5
Mapping establishedEvidence supported

vendor-55adbcf9d3a8123d601490572330d3be196fd5f98db532c7821fe32d99c36107 · product-509fccecd57504d6754fa5e63430bebc7ac2521a1430a67b897a18adf028762e

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
386789f9-3c66-4203-bd54-7ba0bf47f33e
Mapping establishedEvidence supported

vendor-b1377626da187dbea1eeb98f365c57a3dcbeccfdc2a7d3471e94ece7b6f88e55 · product-7c46aad31fff3a518404ae5e4975d355e472ccec48579eb65a862ee12e43bd7e

Source class
Nvd cpe vulnerable target
Assertions
5
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
39a3fe1b-8585-4e8c-9b23-b2608823c5ded00646ee-e0b6-4093-8c8a-ed489f1609f0ea800784-a6c4-4edb-9072-de756bd92f41ef368e0f-b436-4bcf-9391-da4568efbc67f51bec95-824d-4afc-916e-9013603925c1
Mapping establishedEvidence supported

vendor-b1377626da187dbea1eeb98f365c57a3dcbeccfdc2a7d3471e94ece7b6f88e55 · product-8458b355e6bb1531c358968b467b5203071ffd7dfa47a85852e2a5fa9574bfec

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
ffb39433-fffd-409c-9584-2607e1b6f04b
Mapping establishedEvidence supported

vendor-b1377626da187dbea1eeb98f365c57a3dcbeccfdc2a7d3471e94ece7b6f88e55 · product-8f636e0be037da6bf7c0c258d9b119655a5b5c3ceff4bd38c8b31486a91bdd3a

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
101cba70-b260-45be-99ea-795df4a34140
Mapping establishedEvidence supported

vendor-b1377626da187dbea1eeb98f365c57a3dcbeccfdc2a7d3471e94ece7b6f88e55 · product-c04567699fe15f01ca354326b240a6ee6547e2c9ce5ee394b481a5e585d56900

Source class
Nvd cpe vulnerable target
Assertions
5
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
00f7a42a-ffd8-4481-b39e-4cb257c4de1036512848-942b-4063-ab84-242589f3e67d3d9466a7-0c6a-44b0-920d-30c7ab853b5744072d15-dac5-463f-aa59-7b52d64ad7ab7bf299ce-5860-44b8-bd2a-47e2840b5735
Mapping establishedEvidence supported

vendor-b1377626da187dbea1eeb98f365c57a3dcbeccfdc2a7d3471e94ece7b6f88e55 · product-c4dc0bf021423ad0be4faaa4d1ede23abd49525c014e8606392b59645cee31b2

Source class
Nvd cpe vulnerable target
Assertions
7
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
14228761-907b-4206-b774-b91ee93999a633a9b0ff-8644-42fa-b50d-16bfd54adf7c43bb1f7e-cf56-41db-a68b-46549b4ff385a189351f-2313-40e4-8549-171b8acbe717a56eef31-0420-44ef-8e1f-6354d13474adaa0d8dd8-da9c-46ed-809e-efe5f815899ad6b0b66a-2498-4ec9-ab4c-1e0a5c4b1c54
Mapping establishedEvidence supported

vendor-2d566b06907460b10e6e48c8544126e19f1d6df137983056edae8d0b51e34e45 · product-c96c7662a6606ed7594747da3d7ba9ee3a9758ab11658f6a3f42616361472e47

Source class
Nvd cpe vulnerable target
Assertions
3
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
6d996646-faab-4ccf-b7b1-b5cb7c1a2095bd25dd7e-6c49-4a20-ac68-8c1b95b20c83e71007ec-2528-4648-83eb-7a8f00a931a2
Mapping establishedEvidence supported

vendor-b1377626da187dbea1eeb98f365c57a3dcbeccfdc2a7d3471e94ece7b6f88e55 · product-dea20c80858bbd6e6eabbcd185f361e4d609a9a22b02d35be7fa6c8bf8d7443d

Source class
Nvd cpe vulnerable target
Assertions
2
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
a3c2dcf4-7fd1-4631-bbc8-a279a08175bfb4f81681-ffd3-454a-993e-f9ebc9c68cd5
Mapping establishedEvidence supported

vendor-d1dcf2e2192106a1eb34744930a80b83005fa5d60195c923256e69ac39974aed · product-ec38e3f02b7b334dbd1d5af1ae10399a43b703b7a4101c35fff656e228b8b38b

Source class
Nvd cpe vulnerable target
Assertions
2
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
e0868297-7321-424d-a234-a2097fcfad8ef3870ce4-3ff0-4838-aea4-7204896ae459
Source-reported scopeSource-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Vendor specified only by source · Product specified only by source

Source class
Direct cve affected
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
fe58ddaa-8fae-4d1b-9eb2-ed6e2ff4ae64

Assessments

CVSS by origin

8.5
NVDCVSS 3.1 · role Primary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
6.0
NVDCVSS 2.0 · role Primary · priority eligiblevalid_matchAV:N/AC:M/Au:S/C:P/I:P/A:P
8.5
security-advisories@github.comCVSS 3.1 · role Secondary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
8.5
GitHub_MCVSS 3.1 · role unknown · display onlyDirect record assessment retained outside normalized eligibilityCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Direct CVE/CNA normalized decisions

8.5Priority eligible

GitHub_M

CVSS 3.1 · Primary · Original assertion · rank 1

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Validation
Valid match
Recomputed
8.5
Decision reason
Evidence supported
Policy
casca-direct-cvss-eligibility-v1

Assessments are retained side by side under closed precedence. Cascade never averages CVSS.

Evidence boundaries

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; remaining scope stays source-scoped.
  • NVD-carried upstream facts remain derivative; independent corroboration requires a separately authored source.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.
  • OSV aggregation and OSV-converted NVD material are not independent corroboration.
  • Red Hat facts are vendor assertions for the exact supplied products.
  • Nonmembership and not-yet-observed states are not proof of safety.