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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache Software Foundation | Apache Tomcat | 11.0.0-M1 – ≤ 11.0.18, 10.0.0-M1 – ≤ 10.1.52, 9.0.13 – ≤ 9.0.115, 8.5.38 – ≤ 8.5.100, 7.0.100 – ≤ 7.0.109 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | tomcat10 | 10.1.54-1 | — |
| Debian 14 | tomcat11 | 11.0.21-1 | — |
| Debian 14 | tomcat9 | 9.0.70-2 | — |
| Debian 13 | tomcat10 | 10.1.55-1~deb13u1 | — |
| Debian 13 | tomcat11 | 11.0.22-1~deb13u1 | — |
| Debian 13 | tomcat9 | 9.0.70-2 | — |
| Debian 12 | tomcat10 | 10.1.55-1~deb12u1 | — |
| Debian 12 | tomcat9 | 9.0.70-2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | tomcat9 +2 | No fix yet | — |
| Ubuntu 25.10 | tomcat9 +2 | No fix yet | — |
| Ubuntu 24.04 LTS | tomcat9 +1 | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | tomcat9 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | tomcat9 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | tomcat8 +1 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | tomcat +7 | 1:10.1.49-3.el10_2 | RHSA-2026:36788 |
| RHEL 10 | tomcat9 +7 | 1:9.0.117-2.el10_2 | RHSA-2026:36790 |
| RHEL 9 | tomcat +7 | 1:9.0.117-2.el9_8 | RHSA-2026:36879 |
| RHEL 8 | tomcat +7 | 1:9.0.87-2.el8_10 | RHSA-2026:37137 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.0 EUS | tomcat +7 | 1:10.1.36-2.el10_0 | RHSA-2026:36787 |
| RHEL 10.0 EUS | tomcat9 +7 | 1:9.0.87-6.el10_0 | RHSA-2026:36789 |
| RHEL 9.6 EUS | tomcat +7 | 1:9.0.87-4.el9_6 | RHSA-2026:36877 |
| RHEL 9.4 E4S | tomcat +7 | 1:9.0.87-2.el9_4 | RHSA-2026:36876 |
| RHEL 9.2 E4S | tomcat +7 | 1:9.0.87-2.el9_2 | RHSA-2026:36878 |
| RHEL 8.8 TUS | tomcat +7 | 1:9.0.87-2.el8_8 | RHSA-2026:37136 |
| RHEL 8.8 E4S | tomcat +7 | 1:9.0.87-2.el8_8 | RHSA-2026:37136 |
| RHEL 7 ELS | tomcat +9 | 7.0.76-18.el7_9 | RHSA-2026:38505 |
| Red Hat JBoss Web Server 7 | jws7-tomcat +9 | 11.0.21-5.redhat_00004.1.el8jws | RHSA-2026:39188 |
| Red Hat JBoss Web Server 6 | jws6-tomcat +9 | 10.1.49-13.redhat_00011.1.el8jws | RHSA-2026:20405 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | tomcat +7 | 1:10.1.49-3.el10_2.alma.1 | ALSA-2026:36788 |
| AlmaLinux 10 | tomcat9 +7 | 1:9.0.117-2.el10_2.alma.1 | ALSA-2026:36790 |
| AlmaLinux 9 | tomcat +7 | 1:9.0.117-2.el9_8 | ALSA-2026:36879 |
| AlmaLinux 8 | tomcat +7 | 1:9.0.87-2.el8_10 | ALSA-2026:37137 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | tomcat | 1:10.1.49-3.el10_2 | RLSA-2026:36788 |
| Rocky Linux 10 | tomcat9 | 1:9.0.117-2.el10_2 | RLSA-2026:36790 |
| Rocky Linux 9 | tomcat | 1:9.0.117-2.el9_8 | RLSA-2026:36879 |
| Rocky Linux 8 | tomcat | 1:9.0.87-2.el8_10 | RLSA-2026:37137 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | tomcat | 9.0.117-150200.105.1 | SUSE-SU-2026:1604-1 |
| SLES 15 SP7 | tomcat10 | 10.1.54-150200.5.64.1 | SUSE-SU-2026:1603-1 |
| SLES 15 SP7 | tomcat11 | 11.0.21-150600.13.18.1 | SUSE-SU-2026:1558-1 |
| SLES 15 SP6 | tomcat | 9.0.117-150200.105.1 | SUSE-SU-2026:1604-1 |
| SLES 15 SP6 | tomcat10 | 10.1.54-150200.5.64.1 | SUSE-SU-2026:1603-1 |
| SLES 15 SP6 | tomcat11 | 11.0.21-150600.13.18.1 | SUSE-SU-2026:1558-1 |
| SLES 15 SP5 | tomcat | 9.0.117-150200.105.1 | SUSE-SU-2026:1604-1 |
| SLES 15 SP5 | tomcat10 | 10.1.54-150200.5.64.1 | SUSE-SU-2026:1603-1 |
| SLES 15 SP4 | tomcat | 9.0.117-150200.105.1 | SUSE-SU-2026:1604-1 |
| SLES 12 SP5 | tomcat | 9.0.117-3.163.2 | SUSE-SU-2026:1572-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP6 | tomcat | 9.0.117-150200.105.1 | SUSE-SU-2026:1604-1 |
| SLES for SAP 15 SP6 | tomcat10 | 10.1.54-150200.5.64.1 | SUSE-SU-2026:1603-1 |
| SLES for SAP 15 SP6 | tomcat11 | 11.0.21-150600.13.18.1 | SUSE-SU-2026:1558-1 |
| SLES for SAP 15 SP5 | tomcat | 9.0.117-150200.105.1 | SUSE-SU-2026:1604-1 |
| SLES for SAP 15 SP5 | tomcat10 | 10.1.54-150200.5.64.1 | SUSE-SU-2026:1603-1 |
| SLES for SAP 15 SP4 | tomcat | 9.0.117-150200.105.1 | SUSE-SU-2026:1604-1 |
| SLE HPC 15 SP5 | tomcat | 9.0.117-150200.105.1 | SUSE-SU-2026:1604-1 |
| SLE HPC 15 SP5 | tomcat10 | 10.1.54-150200.5.64.1 | SUSE-SU-2026:1603-1 |
| SLE HPC 15 SP4 | tomcat | 9.0.117-150200.105.1 | SUSE-SU-2026:1604-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | tomcat | 9.0.117-1.1 | openSUSE-SU-2026:10547-1 |
| openSUSE Tumbleweed | tomcat10 | 10.1.54-1.1 | openSUSE-SU-2026:10548-1 |
| openSUSE Tumbleweed | tomcat11 | 11.0.21-1.1 | openSUSE-SU-2026:10549-1 |
| openSUSE Leap 16.0 | tomcat | 9.0.117-160000.1.1 | openSUSE-SU-2026:20611-1 |
| openSUSE Leap 16.0 | tomcat10 | 10.1.54-160000.1.1 | openSUSE-SU-2026:20612-1 |
| openSUSE Leap 16.0 | tomcat11 | 11.0.21-160000.1.1 | openSUSE-SU-2026:20595-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | tomcat10 +7 | 1:10.1.54-1.amzn2023.0.1 | ALAS2023-2026-1673 |
| Amazon Linux 2023 | tomcat9 +7 | 1:9.0.117-1.amzn2023.0.1 | ALAS2023-2026-1672 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | tomcat +7 | 1:10.1.49-3.el10_2 | ELSA-2026-36788 |
| Oracle Linux 10 | tomcat9 +7 | 1:9.0.117-2.el10_2 | ELSA-2026-36790 |
| Oracle Linux 9 | tomcat +7 | 1:9.0.117-2.el9_8 | ELSA-2026-36879 |
| Oracle Linux 8 | tomcat +7 | 1:9.0.87-2.el8_10 | ELSA-2026-37137 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | thingsboard-tb-node +1 | 4.3.1.1-r2 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.apache.tomcat:tomcat | >= 9.0.13, < 9.0.116 | 9.0.116 | GHSA-h468-7pvh-8vr8 |
| Maven | org.apache.tomcat:tomcat | >= 10.1.50, < 10.1.53 | 10.1.53 | GHSA-h468-7pvh-8vr8 |
| Maven | org.apache.tomcat:tomcat | >= 11.0.0-M1, < 11.0.20 | 11.0.20 | GHSA-h468-7pvh-8vr8 |
| Maven | org.apache.tomcat:tomcat | >= 8.5.38, <= 8.5.100 | — | GHSA-h468-7pvh-8vr8 |
| Maven | org.apache.tomcat:tomcat | >= 7.0.100, <= 7.0.109 | — | GHSA-h468-7pvh-8vr8 |
| Maven | org.apache.tomcat:tomcat-tribes | >= 9.0.13, < 9.0.116 | 9.0.116 | GHSA-h468-7pvh-8vr8 |
| Maven | org.apache.tomcat:tomcat-tribes | >= 10.1.50, < 10.1.53 | 10.1.53 | GHSA-h468-7pvh-8vr8 |
| Maven | org.apache.tomcat:tomcat-tribes | >= 11.0.0-M1, < 11.0.20 | 11.0.20 | GHSA-h468-7pvh-8vr8 |
| Maven | org.apache.tomcat:tomcat-tribes | >= 8.5.38, <= 8.5.100 | — | GHSA-h468-7pvh-8vr8 |
| Maven | org.apache.tomcat:tomcat-tribes | >= 7.0.100, <= 7.0.109 | — | GHSA-h468-7pvh-8vr8 |
Advisories 40
- WID-SEC-2026-1038 Apache Tomcat und Tomcat Native: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 2026
- ALSA-2026:36790 Important: tomcat9 security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:36879 Important: tomcat security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:36788 Important: tomcat security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:37137 Important: tomcat security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:39188 Red Hat Security Advisory: Red Hat JBoss Web Server 7.0.0 security release Red Hat Security Advisories (RHSA) · Oct 17, 2026
- WID-SEC-2026-2460 Atlassian Bamboo, Bitbucket, Confluence, Fisheye, Crucible, Jira und Jira Service Management: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 1, 2026
- RHSA-2026:20405 Red Hat Security Advisory: Red Hat JBoss Web Server 6.2.3 release and security update Red Hat Security Advisories (RHSA) · Oct 1, 2026
- RHSA-2026:38505 Red Hat Security Advisory: tomcat security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Sep 30, 2026
- RHSA-2026:37137 Red Hat Security Advisory: tomcat security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Sep 30, 2026
- RHSA-2026:37136 Red Hat Security Advisory: tomcat security update Red Hat Security Advisories (RHSA) · Sep 30, 2026
- RHSA-2026:36879 Red Hat Security Advisory: tomcat security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Sep 30, 2026
- RHSA-2026:36877 Red Hat Security Advisory: tomcat security update Red Hat Security Advisories (RHSA) · Sep 30, 2026
- RHSA-2026:36878 Red Hat Security Advisory: tomcat security update Red Hat Security Advisories (RHSA) · Sep 30, 2026
- RHSA-2026:36876 Red Hat Security Advisory: tomcat security update Red Hat Security Advisories (RHSA) · Sep 30, 2026
- RHSA-2026:36790 Red Hat Security Advisory: tomcat9 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Sep 30, 2026
- RHSA-2026:36788 Red Hat Security Advisory: tomcat security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Sep 30, 2026
- RHSA-2026:36789 Red Hat Security Advisory: tomcat9 security update Red Hat Security Advisories (RHSA) · Sep 30, 2026
- RHSA-2026:36787 Red Hat Security Advisory: tomcat security update Red Hat Security Advisories (RHSA) · Sep 30, 2026
- WID-SEC-2026-1608 Atlassian Produkte (Bamboo, Bitbucket, Confluence, Crucible, Fisheye und Jira): Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 19, 2026
- ELSA-2026-36790 Important: tomcat9 security, bug fix, and enhancement update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jul 16, 2026
- ELSA-2026-36788 Important: tomcat security, bug fix, and enhancement update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jul 16, 2026
- RLSA-2026:36788 Important: tomcat security, bug fix, and enhancement update Rocky Linux Security Advisories · Jul 10, 2026
- RLSA-2026:36790 Important: tomcat9 security, bug fix, and enhancement update Rocky Linux Security Advisories · Jul 10, 2026
- RLSA-2026:36879 Important: tomcat security, bug fix, and enhancement update Rocky Linux Security Advisories · Jul 10, 2026
- RLSA-2026:37137 Important: tomcat security, bug fix, and enhancement update Rocky Linux Security Advisories · Jul 10, 2026
- ELSA-2026-37137 Important: tomcat security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jul 9, 2026
- ELSA-2026-36879 Important: tomcat security, bug fix, and enhancement update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jul 8, 2026
- ALAS2023-2026-1672 Moderate: tomcat9 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 13, 2026
- ALAS2023-2026-1673 Moderate: tomcat10 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 13, 2026
- SUSE-SU-2026:1604-1 Security update for tomcat SUSE / openSUSE Security Updates · Apr 25, 2026
- SUSE-SU-2026:1603-1 Security update for tomcat10 SUSE / openSUSE Security Updates · Apr 25, 2026
- openSUSE-SU-2026:20611-1 Security update for tomcat SUSE / openSUSE Security Updates · Apr 24, 2026
- openSUSE-SU-2026:20612-1 Security update for tomcat10 SUSE / openSUSE Security Updates · Apr 24, 2026
- SUSE-SU-2026:1572-1 Security update for tomcat SUSE / openSUSE Security Updates · Apr 24, 2026
- SUSE-SU-2026:1558-1 Security update for tomcat11 SUSE / openSUSE Security Updates · Apr 24, 2026
- openSUSE-SU-2026:20595-1 Security update for tomcat11 SUSE / openSUSE Security Updates · Apr 23, 2026
- openSUSE-SU-2026:10547-1 tomcat-9.0.117-1.1 on GA media SUSE / openSUSE Security Updates · Apr 15, 2026
- openSUSE-SU-2026:10548-1 tomcat10-10.1.54-1.1 on GA media SUSE / openSUSE Security Updates · Apr 15, 2026
- openSUSE-SU-2026:10549-1 tomcat11-11.0.21-1.1 on GA media SUSE / openSUSE Security Updates · Apr 15, 2026
References
- https://lists.apache.org/thread/lzt04z2pb3dc5tk85obn80xygw3z1p0w vendor-advisory