CVE-2026-29146
Apache Tomcat: EncryptInterceptor vulnerable to padding oracle attack by default
At a glance
- Severity
- HIGH 7.5
- EPSS
- EPSS 8.85 % · percentile 95 (2026-10-27)
- State
- PUBLISHED
- Published
- Updated
- Assigner
- apache
- NVD status
- Modified
Description
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.
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | CISA-ADP |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | redhat-SADP |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary) |
Weaknesses (CWE)
Advisories
- GHSA-h468-7pvh-8vr8 — Apache Tomcat: Padding Oracle vulnerability in EncryptInterceptor
European references
- ENISA EUVD · EUVD-2026-21012
- GCVE · GCVE-0-2026-29146
CERT-FR advisories
- CERTFR-2026-AVI-1032 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0958 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0934 — Multiples vulnérabilités dans les produits Atlassian · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0933 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0621 — Multiples vulnérabilités dans les produits Atlassian · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0418 — Multiples vulnérabilités dans Apache Tomcat · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*≥ 7.0.100 ≤ 7.0.109cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*≥ 8.5.38 ≤ 8.5.100cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*≥ 9.0.13 < 9.0.116cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*≥ 10.0.0 < 10.1.53cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*≥ 11.0.0 < 11.0.20
Affected products
| Product | Versions |
|---|---|
| Apache Software Foundation · Apache Tomcat | affected 11.0.0-M1 ≤ 11.0.18 ; affected 10.0.0-M1 ≤ 10.1.52 ; affected 9.0.13 ≤ 9.0.115 ; affected 8.5.38 ≤ 8.5.100 ; affected 7.0.100 ≤ 7.0.109 |
References
- https://lists.apache.org/thread/lzt04z2pb3dc5tk85obn80xygw3z1p0w
- http://www.openwall.com/lists/oss-security/2026/04/09/24
- https://access.redhat.com/security/cve/CVE-2026-29146
- https://bugzilla.redhat.com/show_bug.cgi?id=2457020
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-29146.json
- https://access.redhat.com/errata/RHSA-2026:20405
- https://access.redhat.com/errata/RHSA-2026:39188
- https://access.redhat.com/errata/RHSA-2026:38505
- https://access.redhat.com/errata/RHSA-2026:36787
- https://access.redhat.com/errata/RHSA-2026:36789
- https://access.redhat.com/errata/RHSA-2026:36788
- https://access.redhat.com/errata/RHSA-2026:36790
- https://access.redhat.com/errata/RHSA-2026:37137
- https://access.redhat.com/errata/RHSA-2026:37136
- https://access.redhat.com/errata/RHSA-2026:36878
- https://access.redhat.com/errata/RHSA-2026:36876
- https://access.redhat.com/errata/RHSA-2026:36877
- https://access.redhat.com/errata/RHSA-2026:36879
- https://access.redhat.com/errata/RHSA-2026:20406
- https://access.redhat.com/errata/RHSA-2026:39189
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |