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Advisory details: gitlab / maven/org.apache.tomcat.embed/tomcat-embed-core/CVE-2026-29146
Advisory ID gitlab/maven/org.apache.tomcat.embed/tomcat-embed-core/CVE-2026-29146
Aliases CVE-2026-29146
GHSA-h468-7pvh-8vr8
Summary Apache Tomcat: Padding Oracle vulnerability in EncryptInterceptor Padding Oracle vulnerability in Apache Tomcat's EncryptInterceptor with default configuration. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.0.0-M1 through 10.1.52, from 9.0.13 through 9..115, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109. Users are recommended to upgrade to version 11.0.19, 10.1.53 and 9.0.116, which fixes the issue.
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (3)
CWE-209 Generation of Error Message Containing Sensitive Information
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3.1 https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/org.apache.tomcat.embed/tomcat-embed-core/CVE-2026-29146.yml
Reference id Reference type URL
https://github.com/apache/tomcat
CVE-2026-29146 https://nvd.nist.gov/vuln/detail/CVE-2026-29146
GHSA-h468-7pvh-8vr8 https://github.com/advisories/GHSA-h468-7pvh-8vr8
lzt04z2pb3dc5tk85obn80xygw3z1p0w Advisory https://lists.apache.org/thread/lzt04z2pb3dc5tk85obn80xygw3z1p0w
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/org.apache.tomcat.embed/tomcat-embed-core/CVE-2026-29146.yml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-10T18:17:02Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/29xxx/CVE-2026-29146.json

Source Advisory: vulnrichment/CVE-2026-29146

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'yes'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]