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 7.5. EPSS estimates 6.6% exploit likelihood as of Oct 22, 2026.

63.9–76.7Priority evidence range
Evidence through Oct 22, 2026, 6:07 PM UTC

As of Oct 22, 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
Sep 21, 2026
Evidence coverage
85%

Evidence chronology

What was known when

Download this view's receipt →
  1. 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 ↗
  2. 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 ↗
  3. 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 ↗
  4. 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 ↗
  5. 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 ↗
  6. Source dateFirst observed by CASCA
    FIRST EPSS

    EPSS score: 6.56% probability · 93.8th percentile

    Inspect raw assertion
    Field
    model_probability
    Value
    Probability 0.065610000000; percentile 0.937990000000
    Original evidence ↗
ExploitationCatalog member

CISA KEV · catalog date Aug 4, 2026 · first observed Sep 1, 2026

Exploit likelihood6.56%

FIRST EPSS · score date Oct 22, 2026 · 93.8th percentile · first observed Oct 22, 2026

SeverityCVSS 7.5

CISA-ADP · CVSS 3.1 · first observed Sep 22, 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 statusLast verified source snapshot retained

The last verified source boundary remains in force for this claim.

Revision
evidence-policy-v1.1.0
Cutoff
Oct 22, 2026
Resolution
Review source contract
Exploit likelihoodEvidence supported

Eligible evidence is present for this bounded claim.

Revision
evidence-policy-v1.1.0
Cutoff
Oct 22, 2026
Resolution
None
Severity assessmentEvidence supported

Eligible evidence is present for this bounded claim.

Revision
casca-direct-cvss-eligibility-v1
Cutoff
Oct 22, 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
Oct 22, 2026
Resolution
Resolve identity

Source comparison

Who said what

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 ↗
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 ↗
FIRST EPSSOriginal assertion
EPSS score

6.56% probability · 93.8th percentile

Inspect raw assertion
Field
model_probability
Value
Probability 0.065610000000; percentile 0.937990000000
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
Oct 22, 2026
Retained assertion IDs
01609618-108f-4641-a2fd-ea3089b1590d11935b3e-3d32-4c6c-a17c-656a1d50713f18690c23-78dd-4950-8d64-a4574c97cdeb186c127e-9521-4e10-98c9-38b72dfae3c1193bdde1-0089-49eb-b725-05ee30e1eb931e062a7c-bbfc-4d1a-a1a6-1edd6f185a7c2f37cd16-82e0-4c58-a030-aa2a4119ce433349b237-3c09-4c75-a14b-af4c4c6031aa398540aa-a792-4788-b3d4-771243eca3d13de73237-dd67-4e25-bed2-0de2caacdf544f8a8b98-b32d-4205-9703-fbd41dfe66dc4fe3e862-6409-4122-b434-5626490770a15a4940bd-5368-4fd9-a4e4-1378ce064bf466db899f-a438-499b-abcd-de9fa93ca7d86b236fd8-fe3c-48e3-96c2-c0081d405fbcb1dbccf6-fea1-4b62-8b98-2ee53f8ed72dc149d3d8-94d4-4f89-acbe-27e5a264dc1dcd1baf58-6de7-4e96-97ed-85d8c817d97ccfc84674-61d0-4ef0-b4ae-5998af92561bd612c8ff-f8a7-4947-81f5-75e5c392ec8ddd937743-803e-41d8-9a92-f16222ebe29cec90a960-6473-47ee-b5ee-6ca8760381af
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
Oct 22, 2026
Retained assertion IDs
2a18556b-42a0-491c-b788-d2076126333e5d9943d6-560d-45a4-ac23-7723eeec1b246d54c228-e563-40e3-9520-54a76294e1857837b2a9-e721-4d58-84fc-7a3acdcf9c5789b95b32-010c-4920-aaeb-d9b2af6c3a56956d12c9-2a4a-4151-82f6-8a2e3bb82650a118a6d0-7466-40b6-8016-90a64cf09688a96c0500-9e92-42fa-8dd9-c2782f45e89ea9a8f9af-fbd8-4837-ae7d-1ebc265e7e40acbf5a5f-48bf-43f1-a450-e5aa17b85895ada9f4a8-f7ac-46ad-9c03-0d956181e896c5418886-5749-4ecb-adc0-01ebcc37a69cd6e72b85-139e-41ee-874c-9cb02f7fc31add635b75-4244-4ec1-a8be-98428efb2d43

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
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
7.5
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:N/A:N
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

7.5Priority 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:N/A:N
Validation
Valid match
Recomputed
7.5
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.