CASCACascade Atlas

Evidence dossier

CVE-2026-34486

Apache Tomcat: Fix for CVE-2026-29146 allowed bypass of EncryptInterceptor

Exploited in the wild (CISA KEV since Aug 4, 2026). CISA-ADP reports CVSS 3.1 9.8. Severity assessments differ within at least one CVSS version. EPSS estimates 81.2% exploit likelihood as of Aug 7, 2026.

76.8–95.3Priority evidence range
Evidence current through Aug 27, 2026, 6:09 PM UTC

As of Aug 27, 2026

Normalized restatement

Missing Encryption of Sensitive Data vulnerability in Apache Tomcat due to the fix for CVE-2026-29146 allowing the bypass of the EncryptInterceptor. This issue affects Apache Tomcat: 11.0.20, 10.1.53, 9.0.116. Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fix the issue.

State
PUBLISHED
Published
Apr 9, 2026
Updated
Aug 5, 2026
Evidence coverage
72%

Evidence chronology

What was known when

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

    Record text: Apache Tomcat: Fix for CVE-2026-29146 allowed bypass of EncryptInterceptor

    Inspect raw assertion
    Field
    container
    Value
    Apache Tomcat: Fix for CVE-2026-29146 allowed bypass of EncryptInterceptor
    Original evidence ↗
  2. 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 ↗
  3. 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 ↗
  4. Source dateSource date omittedFirst observed by CASCA
    redhat-SADP

    Record text: Apache Tomcat: Apache Tomcat: Missing Encryption of Sensitive Data due to EncryptInterceptor bypass

    Inspect raw assertion
    Field
    container
    Value
    Apache Tomcat: Apache Tomcat: Missing Encryption of Sensitive Data due to EncryptInterceptor bypass
    Original evidence ↗
  5. Source dateFirst observed by CASCA
    CISA KEV

    Exploitation cataloged: Apache Tomcat Missing Encryption of Sensitive Data Vulnerability

    Inspect raw assertion
    Field
    observed_exploitation
    Value
    Apache Tomcat Missing Encryption of Sensitive Data Vulnerability
    Original evidence ↗
  6. Source dateFirst observed by CASCA
    FIRST EPSS

    EPSS score: 81.16% probability · 99.6th percentile

    Inspect raw assertion
    Field
    model_probability
    Value
    Probability 0.811600000000; percentile 0.995980000000
    Original evidence ↗

Assessments differ

CVE Program source7.5CVSS 3.1 · source date omitted
CVE Program source9.8CVSS 3.1 · source date omitted

Values are shown separately by source and CVSS version.

ExploitationCatalog member

CISA KEV · catalog date Aug 4, 2026 · first observed Aug 6, 2026

Exploit likelihood81.16%

FIRST EPSS · score date Aug 7, 2026 · 99.6th percentile · first observed Aug 7, 2026

SeverityAssessments differ

CISA-ADP · CVSS 3.1 · first observed Aug 6, 2026 · values shown separately below

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 assessmentAssessments differ

Eligible assertions materially conflict and remain visible side by side.

Revision
casca-direct-cvss-eligibility-v1
Cutoff
Aug 27, 2026
Resolution
Resolve conflict
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

apacheOriginal assertion
Record text

Apache Tomcat: Fix for CVE-2026-29146 allowed bypass of EncryptInterceptor

Inspect raw assertion
Field
container
Value
Apache Tomcat: Fix for CVE-2026-29146 allowed bypass of EncryptInterceptor
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
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 ↗
redhat-SADPSource-declared origin
Record text

Apache Tomcat: Apache Tomcat: Missing Encryption of Sensitive Data due to EncryptInterceptor bypass

Inspect raw assertion
Field
container
Value
Apache Tomcat: Apache Tomcat: Missing Encryption of Sensitive Data due to EncryptInterceptor bypass
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CISA KEVOriginal assertion
Exploitation cataloged

Apache Tomcat Missing Encryption of Sensitive Data Vulnerability

Inspect raw assertion
Field
observed_exploitation
Value
Apache Tomcat Missing Encryption of Sensitive Data Vulnerability
Source dateFirst observed by CASCAOriginal evidence ↗
FIRST EPSSOriginal assertion
EPSS score

81.16% probability · 99.6th percentile

Inspect raw assertion
Field
model_probability
Value
Probability 0.811600000000; percentile 0.995980000000
Source dateFirst observed by CASCAOriginal evidence ↗

Applicability

Cited product scope

Trace impact →
3Underlying assertions
1Canonical products
3Target assertions
0Constraint assertions

Grouped from 1 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

23 scope groups

apache · source assertedApache Software FoundationApache TomcatDirect source scope
Affected: 11.0.20 (semver comparison)Affected: 10.1.53 (semver comparison)Affected: 9.0.116 (semver comparison)
Source-reported scope

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

Inspect raw assertion[{"status": "affected", "version": "11.0.20", "versionType": "semver"}, {"status": "affected", "version": "10.1.53", "versionType": "semver"}, {"status": "affected", "version": "9.0.116", "versionType": "semver"}]
redhat-SADP · source assertedRed HatRed Hat Enterprise Linux 10Direct source scope
Unaffected: 1:9.0.117-2.el10_2 to before * (rpm comparison)
Source-reported scope

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

Inspect raw assertion[{"status": "unaffected", "version": "1:9.0.117-2.el10_2", "lessThan": "*", "versionType": "rpm"}]
redhat-SADP · source assertedRed HatRed Hat Enterprise Linux 10Direct source scope
Unaffected: 1:10.1.49-3.el10_2 to before * (rpm comparison)
Source-reported scope

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

Inspect raw assertion[{"status": "unaffected", "version": "1:10.1.49-3.el10_2", "lessThan": "*", "versionType": "rpm"}]
redhat-SADP · source assertedRed HatRed Hat Enterprise Linux 10.0 Extended Update SupportDirect source scope
Unaffected: 1:9.0.87-6.el10_0 to before * (rpm comparison)
Source-reported scope

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

Inspect raw assertion[{"status": "unaffected", "version": "1:9.0.87-6.el10_0", "lessThan": "*", "versionType": "rpm"}]
redhat-SADP · source assertedRed HatRed Hat Enterprise Linux 10.0 Extended Update SupportDirect source scope
Unaffected: 1:10.1.36-2.el10_0 to before * (rpm comparison)
Source-reported scope

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

Inspect raw assertion[{"status": "unaffected", "version": "1:10.1.36-2.el10_0", "lessThan": "*", "versionType": "rpm"}]
redhat-SADP · source assertedRed HatRed Hat Enterprise Linux 6Direct source scope
Version details are available in the raw assertion
Source-reported scope

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

Inspect raw assertion[]
redhat-SADP · source assertedRed HatRed Hat Enterprise Linux 7 Extended Lifecycle SupportDirect source scope
Unaffected: 0:7.0.76-18.el7_9 to before * (rpm comparison)
Source-reported scope

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

Inspect raw assertion[{"status": "unaffected", "version": "0:7.0.76-18.el7_9", "lessThan": "*", "versionType": "rpm"}]
redhat-SADP · source assertedRed HatRed Hat Enterprise Linux 8Direct source scope
Unaffected: 1:9.0.87-2.el8_10 to before * (rpm comparison)
Source-reported scope

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

Inspect raw assertion[{"status": "unaffected", "version": "1:9.0.87-2.el8_10", "lessThan": "*", "versionType": "rpm"}]
redhat-SADP · source assertedRed HatRed Hat Enterprise Linux 8Direct source scope
Version details are available in the raw assertion
Source-reported scope

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

Inspect raw assertion[]
redhat-SADP · source assertedRed HatRed Hat Enterprise Linux 8.8 Telecommunications Update ServiceDirect source scope
Unaffected: 1:9.0.87-2.el8_8 to before * (rpm comparison)
Source-reported scope

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

Inspect raw assertion[{"status": "unaffected", "version": "1:9.0.87-2.el8_8", "lessThan": "*", "versionType": "rpm"}]
redhat-SADP · source assertedRed HatRed Hat Enterprise Linux 8.8 Update Services for SAP SolutionsDirect source scope
Unaffected: 1:9.0.87-2.el8_8 to before * (rpm comparison)
Source-reported scope

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

Inspect raw assertion[{"status": "unaffected", "version": "1:9.0.87-2.el8_8", "lessThan": "*", "versionType": "rpm"}]
redhat-SADP · source assertedRed HatRed Hat Enterprise Linux 9Direct source scope
Unaffected: 1:9.0.117-2.el9_8 to before * (rpm comparison)
Source-reported scope

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

Inspect raw assertion[{"status": "unaffected", "version": "1:9.0.117-2.el9_8", "lessThan": "*", "versionType": "rpm"}]
redhat-SADP · source assertedRed HatRed Hat Enterprise Linux 9Direct source scope
Version details are available in the raw assertion
Source-reported scope

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

Inspect raw assertion[]
redhat-SADP · source assertedRed HatRed Hat Enterprise Linux 9.2 Update Services for SAP SolutionsDirect source scope
Unaffected: 1:9.0.87-2.el9_2 to before * (rpm comparison)
Source-reported scope

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

Inspect raw assertion[{"status": "unaffected", "version": "1:9.0.87-2.el9_2", "lessThan": "*", "versionType": "rpm"}]
redhat-SADP · source assertedRed HatRed Hat Enterprise Linux 9.4 Update Services for SAP SolutionsDirect source scope
Unaffected: 1:9.0.87-2.el9_4 to before * (rpm comparison)
Source-reported scope

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

Inspect raw assertion[{"status": "unaffected", "version": "1:9.0.87-2.el9_4", "lessThan": "*", "versionType": "rpm"}]
redhat-SADP · source assertedRed HatRed Hat Enterprise Linux 9.6 Extended Update SupportDirect source scope
Unaffected: 1:9.0.87-4.el9_6 to before * (rpm comparison)
Source-reported scope

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

Inspect raw assertion[{"status": "unaffected", "version": "1:9.0.87-4.el9_6", "lessThan": "*", "versionType": "rpm"}]
redhat-SADP · source assertedRed HatRed Hat JBoss Web Server 5Direct source scope
Version details are available in the raw assertion
Source-reported scope

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

Inspect raw assertion[]
redhat-SADP · source assertedRed HatRed Hat JBoss Web Server 6Direct source scope
Version details are available in the raw assertion
Source-reported scope

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

Inspect raw assertion[]
redhat-SADP · source assertedRed HatRed Hat JBoss Web Server 7.0.0Direct source scope
Version details are available in the raw assertion
Source-reported scope

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

Inspect raw assertion[]
redhat-SADP · source assertedRed HatRed Hat JBoss Web Server 7.0 on RHEL 10Direct source scope
Unaffected: 0:11.0.21-5.redhat_00004.1.el10jws to before * (rpm comparison)
Source-reported scope

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

Inspect raw assertion[{"status": "unaffected", "version": "0:11.0.21-5.redhat_00004.1.el10jws", "lessThan": "*", "versionType": "rpm"}]
redhat-SADP · source assertedRed HatRed Hat JBoss Web Server 7.0 on RHEL 8Direct source scope
Unaffected: 0:11.0.21-5.redhat_00004.1.el8jws to before * (rpm comparison)
Source-reported scope

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

Inspect raw assertion[{"status": "unaffected", "version": "0:11.0.21-5.redhat_00004.1.el8jws", "lessThan": "*", "versionType": "rpm"}]
redhat-SADP · source assertedRed HatRed Hat JBoss Web Server 7.0 on RHEL 9Direct source scope
Unaffected: 0:11.0.21-5.redhat_00004.1.el9jws to before * (rpm comparison)
Source-reported scope

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

Inspect raw assertion[{"status": "unaffected", "version": "0:11.0.21-5.redhat_00004.1.el9jws", "lessThan": "*", "versionType": "rpm"}]
NVD CPE · APPLICATIONapachetomcatVulnerable target · 3 assertions
Version 10.1.53; Version 11.0.20; Version 9.0.116Canonical identity product-b4642eb973ddbe1a3e24c089bf036c528ab40d12c3eab0fae6fd551615375441Linked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:a:apache:tomcat:9.0.116:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    cc160f23-a9d6-42da-92e6-886b1b1f48a6
  2. cpe:2.3:a:apache:tomcat:10.1.53:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 1
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    0e7a0ce9-ebdf-4305-9c06-e7d4521af422
  3. cpe:2.3:a:apache:tomcat:11.0.20:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 2
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    64baae4d-2355-43d8-83e5-01ca71d5dc0b

Affected-product evidence

Accepted scope and product mapping

0 canonical links · 2 source-reported links

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
22
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
018e825c-379c-42b3-b30e-5dd0aa93080702a3287f-c2d5-43c8-8e91-956770712d8c08d05bc2-558d-4b03-bf84-df27227cd0801b9e07fe-d0dd-4a25-9baa-ba06fca838e02097f7ba-689a-436d-a0a8-4a824d41d27d389c376d-86c8-4840-9df5-0246e17a5e1140c75a88-e7d0-4a53-ac1f-d50538ad2d6842b00748-7643-47ce-9e90-9863158d909052f53ddd-ee68-4177-b7eb-2c5f045d42347df82618-5d2c-433f-b36f-107a77b43b29848b7860-9c2a-4a8a-9a71-5bab5362a77c9fbd8e14-bdb4-4f73-942b-e3cde5f3ac83a706d668-12b0-41ce-aa49-f127e179d687b27dcea8-30e0-417c-b10b-d17f23034671b4324ee1-429a-48ec-af61-473ea2566701cd08b7af-45c7-4808-97fe-24c506b3f255e3a91a65-59ac-4645-bca1-3f6f4b01e023e8218504-fa4a-4a3d-b3c2-9bc4ea9a292ee9bc133b-81e3-41ce-99ab-2dd2485ccf5df0f58178-5532-4b2c-8233-e3ac05115a75f25f8e06-7d8b-4b6d-9ba2-0abf71f0a2c3fd9dc2f0-bebb-42fb-a99f-34f1c70259be
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
Nvd cpe vulnerable target
Assertions
14
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
2cff7e9b-f86e-464a-aade-81f579eefc9e36d2ebde-6593-46ab-8dc5-47c4fcc2bc3458fc6e44-3fb2-4710-b4f3-e49d8a4b783659bb545d-1ae5-4bd6-9d73-ea5d36781a465bdd452f-810c-458d-b22f-2ddce712ad865c78f709-e495-4a3b-8bed-ebfee6cf9da460a4a6d8-3d16-45a4-b5a4-3eeb3539a3b46e3e5b1b-2dc5-4773-a06c-a0528a8d860780b72e08-5388-49a6-990f-5eff18c32830a99a4a73-aba6-48a0-b4b9-ca77f7dbbbc0bb0391f5-ac5e-43ad-bb3d-89de87f51311bc9405c3-07cb-4a6d-9938-c7d44dceb7c7d22400f8-3673-4fdc-adb1-8c08251e3beed4f24921-f567-4376-9323-31e3070a5c95

Assessments

CVSS by origin

7.5
CVE Program sourceCVSS 3.1 · role Secondary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
9.8
CVE Program sourceCVSS 3.1 · role Secondary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8
CISA-ADPCVSS 3.1 · role unknown · display onlyDirect record assessment retained outside normalized eligibilityCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5
redhat-SADPCVSS 3.1 · role unknown · display onlyDirect record assessment retained outside normalized eligibilityCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Direct CVE/CNA normalized decisions

9.8Priority eligible

CISA-ADP

CVSS 3.1 · Secondary · Independent enrichment · rank 2

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Validation
Valid match
Recomputed
9.8
Decision reason
Evidence supported
Policy
casca-direct-cvss-eligibility-v1
7.5Display only

redhat-SADP

CVSS 3.1 · Secondary · Unknown origin · rank 2

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Validation
Valid match
Recomputed
7.5
Decision reason
Policy deferred
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.