Description
Improper Resource Shutdown or Release vulnerability in Apache Tomcat made Tomcat vulnerable to the made you reset attack.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.9, from 10.1.0-M1 through 10.1.43 and from 9.0.0.M1 through 9.0.107. Older, EOL versions may also be affected.
Users are recommended to upgrade to one of versions 11.0.10, 10.1.44 or 9.0.108 which fix the issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache Software Foundation | Apache Tomcat | 11.0.0-M1 – ≤ 11.0.9, 10.1.0-M1 – ≤ 10.1.43, 9.0.0.M1 – ≤ 9.0.107 | — |
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 | 10.1.52-1 | — |
| Debian 14 | tomcat11 | 11.0.11-1 | — |
| Debian 14 | tomcat9 | 9.0.70-2 | — |
| Debian 13 | tomcat10 | 10.1.52-1~deb13u1 | DSA-6120-1 |
| Debian 13 | tomcat11 | 11.0.15-1~deb13u1 | DSA-6121-1 |
| Debian 13 | tomcat9 | 9.0.70-2 | — |
| Debian 12 | tomcat10 | 10.1.52-1~deb12u1 | DSA-6120-1 |
| Debian 12 | tomcat9 | 9.0.70-2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | tomcat10 | No fix yet | — |
| Ubuntu 26.04 LTS | tomcat10 +1 | No fix yet | — |
| Ubuntu 25.10 | tomcat10 +1 | No fix yet | — |
| Ubuntu 24.04 LTS | tomcat10 | No fix yet | — |
Show 4 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 | — |
| Ubuntu Pro 14.04 LTS | tomcat6 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | tomcat +7 | 1:10.1.36-1.el10_0.2 | RHSA-2025:14179 |
| RHEL 10 | tomcat9 +7 | 1:9.0.87-5.el10_0.3 | RHSA-2025:14178 |
| RHEL 9 | tomcat +7 | 1:9.0.87-3.el9_6.3 | RHSA-2025:14181 |
| RHEL 8 | tomcat +7 | 1:9.0.87-1.el8_10.6 | RHSA-2025:14177 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.4 EUS | tomcat +7 | 1:9.0.87-1.el9_4.6 | RHSA-2025:14180 |
| RHEL 9.2 E4S | tomcat +7 | 1:9.0.87-1.el9_2.6 | RHSA-2025:14183 |
| RHEL 8.8 TUS | tomcat +7 | 1:9.0.87-1.el8_8.7 | RHSA-2025:14182 |
| RHEL 8.8 E4S | tomcat +7 | 1:9.0.87-1.el8_8.7 | RHSA-2025:14182 |
| Red Hat JBoss Web Server 6 | jws6-tomcat +9 | 10.1.36-8.redhat_00009.1.el8jws | RHSA-2025:13685 |
| Red Hat JBoss Web Server 5 | jws5-tomcat +11 | 9.0.87-14.redhat_00013.1.el7jws | RHSA-2025:22925 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | tomcat9 +7 | 1:9.0.87-5.el10_0.3 | ALSA-2025:14178 |
| AlmaLinux 9 | tomcat +7 | 1:9.0.87-3.el9_6.3 | ALSA-2025:14181 |
| AlmaLinux 8 | tomcat +7 | 1:9.0.87-1.el8_10.6 | ALSA-2025:14177 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | tomcat | 1:10.1.36-1.el10_0.2 | RLSA-2025:14179 |
| Rocky Linux 10 | tomcat9 | 1:9.0.87-5.el10_0.3 | RLSA-2025:14178 |
| Rocky Linux 9 | tomcat | 1:9.0.87-3.el9_6.3 | RLSA-2025:14181 |
| Rocky Linux 8 | tomcat | 1:9.0.87-1.el8_10.6 | RLSA-2025:14177 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | tomcat | 9.0.108-150200.91.1 | SUSE-SU-2025:03024-1 |
| SLES 15 SP7 | tomcat10 | 10.1.44-150200.5.51.1 | SUSE-SU-2025:03006-1 |
| SLES 15 SP7 | tomcat11 | 11.0.10-150600.13.9.1 | SUSE-SU-2025:02992-1 |
| SLES 15 SP6 | tomcat | 9.0.108-150200.91.1 | SUSE-SU-2025:03024-1 |
| SLES 15 SP6 | tomcat10 | 10.1.44-150200.5.51.1 | SUSE-SU-2025:03006-1 |
| SLES 15 SP6 | tomcat11 | 11.0.10-150600.13.9.1 | SUSE-SU-2025:02992-1 |
| SLES 15 SP5 | tomcat | 9.0.108-150200.91.1 | SUSE-SU-2025:03024-1 |
| SLES 15 SP5 | tomcat10 | 10.1.44-150200.5.51.1 | SUSE-SU-2025:03006-1 |
| SLES 15 SP4 | tomcat | 9.0.108-150200.91.1 | SUSE-SU-2025:03024-1 |
| SLES 15 SP3 | tomcat | 9.0.108-150200.91.1 | SUSE-SU-2025:03024-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | tomcat | 9.0.115-3.160.1 | SUSE-SU-2026:1058-1 |
| SLES for SAP 15 SP5 | tomcat | 9.0.108-150200.91.1 | SUSE-SU-2025:03024-1 |
| SLES for SAP 15 SP5 | tomcat10 | 10.1.44-150200.5.51.1 | SUSE-SU-2025:03006-1 |
| SLES for SAP 15 SP4 | tomcat | 9.0.108-150200.91.1 | SUSE-SU-2025:03024-1 |
| SLES for SAP 15 SP3 | tomcat | 9.0.108-150200.91.1 | SUSE-SU-2025:03024-1 |
| SLE HPC 15 SP5 | tomcat | 9.0.108-150200.91.1 | SUSE-SU-2025:03024-1 |
| SLE HPC 15 SP5 | tomcat10 | 10.1.44-150200.5.51.1 | SUSE-SU-2025:03006-1 |
| SLE HPC 15 SP4 | tomcat | 9.0.108-150200.91.1 | SUSE-SU-2025:03024-1 |
| SLE HPC 15 SP3 | tomcat | 9.0.108-150200.91.1 | SUSE-SU-2025:03024-1 |
| SUSE Manager Server LTS 4.3 | tomcat | 9.0.108-150200.91.1 | SUSE-SU-2025:03024-1 |
| SUSE Enterprise Storage 7.1 | tomcat | 9.0.108-150200.91.1 | SUSE-SU-2025:03024-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | tomcat | 9.0.108-1.1 | openSUSE-SU-2025:15488-1 |
| openSUSE Tumbleweed | tomcat10 | 10.1.44-1.1 | openSUSE-SU-2025:15489-1 |
| openSUSE Tumbleweed | tomcat11 | 11.0.10-1.1 | openSUSE-SU-2025:15490-1 |
| openSUSE Leap 15.6 | tomcat | 9.0.108-150200.91.1 | SUSE-SU-2025:03024-1 |
| openSUSE Leap 15.6 | tomcat10 | 10.1.44-150200.5.51.1 | SUSE-SU-2025:03006-1 |
| openSUSE Leap 15.6 | tomcat11 | 11.0.10-150600.13.9.1 | SUSE-SU-2025:02992-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | tomcat10 +7 | 1:10.1.44-1.amzn2023.0.1 | ALAS2023-2025-1166 |
| Amazon Linux 2023 | tomcat9 +7 | 1:9.0.108-1.amzn2023.0.1 | ALAS2023-2025-1167 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | tomcat +7 | 1:10.1.36-1.el10_0.2 | ELSA-2025-14179 |
| Oracle Linux 10 | tomcat9 +7 | 1:9.0.87-5.el10_0.3 | ELSA-2025-14178 |
| Oracle Linux 9 | tomcat +7 | 1:9.0.87-3.el9_6.3 | ELSA-2025-14181 |
| Oracle Linux 8 | tomcat +7 | 1:9.0.87-1.el8_10.6 | ELSA-2025-14177 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.apache.tomcat:tomcat-coyote | >= 11.0.0-M1, < 11.0.10 | 11.0.10 | GHSA-gqp3-2cvr-x8m3 |
| Maven | org.apache.tomcat:tomcat-coyote | >= 10.1.0-M1, < 10.1.44 | 10.1.44 | GHSA-gqp3-2cvr-x8m3 |
| Maven | org.apache.tomcat:tomcat-coyote | >= 9.0.0.M1, < 9.0.108 | 9.0.108 | GHSA-gqp3-2cvr-x8m3 |
| Maven | org.apache.tomcat.embed:tomcat-embed-core | >= 11.0.0-M1, < 11.0.10 | 11.0.10 | GHSA-gqp3-2cvr-x8m3 |
| Maven | org.apache.tomcat.embed:tomcat-embed-core | >= 10.1.0-M1, < 10.1.44 | 10.1.44 | GHSA-gqp3-2cvr-x8m3 |
| Maven | org.apache.tomcat.embed:tomcat-embed-core | >= 9.0.0.M1, < 9.0.108 | 9.0.108 | GHSA-gqp3-2cvr-x8m3 |
Advisories 50
- WID-SEC-2025-1830 http/2 Implementierungen: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Nov 3, 2026
- WID-SEC-2026-2189 Dell PowerProtect Data Domain: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 2, 2026
- ALSA-2025:14181 Important: tomcat security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:14178 Important: tomcat9 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:14177 Important: tomcat security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2025:22925 Red Hat Security Advisory: Red Hat JBoss Web Server 5.8.6 release and security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2025:14183 Red Hat Security Advisory: tomcat security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2025:14181 Red Hat Security Advisory: tomcat security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2025:14182 Red Hat Security Advisory: tomcat security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2025:14180 Red Hat Security Advisory: tomcat security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2025:14179 Red Hat Security Advisory: tomcat security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2025:14177 Red Hat Security Advisory: tomcat security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2025:14178 Red Hat Security Advisory: tomcat9 security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2025:13685 Red Hat Security Advisory: Red Hat JBoss Web Server 6.1.2 release and security update Red Hat Security Advisories (RHSA) · Sep 17, 2026
- WID-SEC-2026-0351 Dell NetWorker (Third Party Components): Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 31, 2026
- ICSA-26-134-10 Siemens SIMATIC CISA ICS & IT advisories · May 14, 2026
- NCSC-2026-0147 Kwetsbaarheden verholpen in Siemens-producten NCSC-NL (Netherlands) · May 13, 2026
- SSA-032379 SSA-032379: Multiple Vulnerabilities in SIMATIC CN 4100 Before V5.0 Siemens ProductCERT · May 12, 2026
- SUSE-SU-2026:1058-1 Security update for tomcat SUSE / openSUSE Security Updates · Mar 27, 2026
- openSUSE-SU-2025:15488-1 tomcat-9.0.108-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15489-1 tomcat10-10.1.44-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15490-1 tomcat11-11.0.10-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:03024-1 Security update for tomcat SUSE / openSUSE Security Updates · Mar 23, 2026
- WID-SEC-2026-0177 Atlassian Bamboo, Bitbucket, Confluence und Jira: Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 18, 2026
- DSA-6120-1 tomcat10 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-6121-1 tomcat11 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2025:02992-1 Security update for tomcat11 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03006-1 Security update for tomcat10 SUSE / openSUSE Security Updates · Feb 4, 2026
- NCSC-2026-0034 Kwetsbaarheden verholpen in Atlassian producten NCSC-NL (Netherlands) · Jan 22, 2026
- WID-SEC-2026-0173 Oracle Utilities Applications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 20, 2026
- WID-SEC-2026-0165 Oracle Siebel CRM: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 20, 2026
- WID-SEC-2026-0175 Oracle Supply Chain: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 20, 2026
- WID-SEC-2025-2853 HCL Commerce: Mehrere Schwachstellen BSI CERT-Bund (WID) · Dec 15, 2025
- WID-SEC-2025-2361 Oracle Communications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 17, 2025
- WID-SEC-2025-2360 Oracle Communications Applications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 17, 2025
- NCSC-2025-0333 Kwetsbaarheden verholpen in Oracle Financial Services NCSC-NL (Netherlands) · Oct 23, 2025
- NCSC-2025-0330 Kwetsbaarheden verholpen in Oracle Communications producten NCSC-NL (Netherlands) · Oct 23, 2025
- NCSC-2025-0329 Kwetsbaarheden verholpen in Oracle Commerce NCSC-NL (Netherlands) · Oct 23, 2025
- WID-SEC-2025-2356 Oracle Financial Services Applications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 22, 2025
- WID-SEC-2025-2373 Oracle Retail Applications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 21, 2025
- WID-SEC-2025-2357 Oracle Commerce: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 21, 2025
- RLSA-2025:14178 Important: tomcat9 security update Rocky Linux Security Advisories · Oct 8, 2025
- RLSA-2025:14181 Important: tomcat security update Rocky Linux Security Advisories · Oct 4, 2025
- RLSA-2025:14179 Important: tomcat security update Rocky Linux Security Advisories · Oct 3, 2025
- RLSA-2025:14177 Important: tomcat security update Rocky Linux Security Advisories · Sep 8, 2025
- ALAS2023-2025-1166 Important: tomcat10 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Sep 8, 2025
- ALAS2023-2025-1167 Important: tomcat9 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Sep 8, 2025
- ELSA-2025-14179 Important: tomcat security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Aug 22, 2025
- ELSA-2025-14178 Important: tomcat9 security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Aug 21, 2025
- ELSA-2025-14181 Important: tomcat security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Aug 20, 2025
References
- https://lists.apache.org/thread/9ydfg0xr0tchmglcprhxgwhj0hfwxlyf vendor-advisory