# CVE-2026-73180: tomcat9: Insufficient Session Expiration vulnerability in Apache Tomcat meant that if the session ID for an authenticated HTTP... CVE-2026-73180 is fixed in 13 products on 1 platform, first by RHSA-2026:73981, released August 25, 2026. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2026-73180 - Priority: Routine - CVSS: 6.8 (medium) - EPSS: 0.0044 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Aug 25, 2026 ## Description Insufficient Session Expiration vulnerability in Apache Tomcat meant that if the session ID for an authenticated HTTP session was changed after a WebSocket connection had been established under that authenticated HTTP session, the WebSokcet session would not be closed as required by the Jakarta WebSocket specification when the HTTP session ended. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.43 through 7.0.109. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | jws6-tomcat RHEL 10 | 10.1.49-16.redhat_00016.1.el10jws | [RHSA-2026:73981](https://patchblox.com/security/data/fix/linux/rhsa-2026-73981.md) | Aug 25, 2026 | | Linux | jws7-tomcat RHEL 10 | 11.0.21-7.redhat_00006.1.el10jws | [RHSA-2026:76952](https://patchblox.com/security/data/fix/linux/rhsa-2026-76952.md) | Aug 25, 2026 | | Linux | tomcat opensuse-leap 16.0 | 9.0.121-160000.1.1 | [OPENSUSE-SU-2026:21823-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21823-1.md) | Sep 9, 2026 | | Linux | tomcat sles 15.6 | 9.0.121-150200.120.1 | [SUSE-SU-2026:4203-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4203-1.md) | Sep 16, 2026 | | Linux | tomcat sles 15.7 | 9.0.121-150200.120.1 | [SUSE-SU-2026:4203-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4203-1.md) | Sep 16, 2026 | | Linux | tomcat sles 16.0 | 9.0.121-160000.1.1 | [SUSE-SU-2026:23720-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23720-1.md) | Sep 9, 2026 | | Linux | tomcat10 Debian 14 | 10.1.60-1 | [DEBIAN-CVE-2026-73180](https://patchblox.com/security/data/fix/linux/debian-cve-2026-73180.md) | Aug 27, 2026 | | Linux | tomcat10 opensuse-leap 16.0 | 10.1.59-160000.1.1 | [OPENSUSE-SU-2026:21810-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21810-1.md) | Sep 8, 2026 | | Linux | tomcat10 sles 15.6 | 10.1.59-150200.5.79.1 | [SUSE-SU-2026:4119-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4119-1.md) | Sep 10, 2026 | | Linux | tomcat10 sles 15.7 | 10.1.59-150200.5.79.1 | [SUSE-SU-2026:4119-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4119-1.md) | Sep 10, 2026 | | Linux | tomcat10 sles 16.0 | 10.1.59-160000.1.1 | [SUSE-SU-2026:23711-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23711-1.md) | Sep 8, 2026 | | Linux | tomcat11 amzn 2023 | 1:11.0.26-1.amzn2023.0.1 | [ALAS2023-2026-3151](https://patchblox.com/security/data/fix/linux/alas2023-2026-3151.md) | Nov 7, 2026 | | Linux | tomcat11 opensuse-leap 16.0 | 11.0.25-160000.1.1 | [OPENSUSE-SU-2026:21811-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21811-1.md) | Sep 8, 2026 | | Linux | tomcat11 sles 15.6 | 11.0.25-150600.13.33.2 | [SUSE-SU-2026:4114-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4114-1.md) | Sep 9, 2026 | | Linux | tomcat11 sles 15.7 | 11.0.25-150600.13.33.2 | [SUSE-SU-2026:4114-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4114-1.md) | Sep 9, 2026 | | Linux | tomcat11 sles 16.0 | 11.0.25-160000.1.1 | [SUSE-SU-2026:23710-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23710-1.md) | Sep 8, 2026 | | Linux | tomcat11-admin-webapps amzn 2023 | 1:11.0.26-1.amzn2023.0.1 | [ALAS2023-2026-3151](https://patchblox.com/security/data/fix/linux/alas2023-2026-3151.md) | Nov 7, 2026 | | Linux | tomcat11-docs-webapp amzn 2023 | 1:11.0.26-1.amzn2023.0.1 | [ALAS2023-2026-3151](https://patchblox.com/security/data/fix/linux/alas2023-2026-3151.md) | Nov 7, 2026 | | Linux | tomcat11-el-6.0-api amzn 2023 | 1:11.0.26-1.amzn2023.0.1 | [ALAS2023-2026-3151](https://patchblox.com/security/data/fix/linux/alas2023-2026-3151.md) | Nov 7, 2026 | | Linux | tomcat11-jsp-4.0-api amzn 2023 | 1:11.0.26-1.amzn2023.0.1 | [ALAS2023-2026-3151](https://patchblox.com/security/data/fix/linux/alas2023-2026-3151.md) | Nov 7, 2026 | | Linux | tomcat11-lib amzn 2023 | 1:11.0.26-1.amzn2023.0.1 | [ALAS2023-2026-3151](https://patchblox.com/security/data/fix/linux/alas2023-2026-3151.md) | Nov 7, 2026 | | Linux | tomcat11-servlet-6.1-api amzn 2023 | 1:11.0.26-1.amzn2023.0.1 | [ALAS2023-2026-3151](https://patchblox.com/security/data/fix/linux/alas2023-2026-3151.md) | Nov 7, 2026 | | Linux | tomcat11-webapps amzn 2023 | 1:11.0.26-1.amzn2023.0.1 | [ALAS2023-2026-3151](https://patchblox.com/security/data/fix/linux/alas2023-2026-3151.md) | Nov 7, 2026 | | Linux | tomcat9 Debian 12.15 (bookworm) | 9.0.70-2 | [DEBIAN-CVE-2026-73180](https://patchblox.com/security/data/fix/linux/debian-cve-2026-73180.md) | Aug 27, 2026 | | Linux | tomcat9 Debian 13.5 (trixie) | 9.0.70-2 | [DEBIAN-CVE-2026-73180](https://patchblox.com/security/data/fix/linux/debian-cve-2026-73180.md) | Aug 27, 2026 | | Linux | tomcat9 Debian 14 | 9.0.70-2 | [DEBIAN-CVE-2026-73180](https://patchblox.com/security/data/fix/linux/debian-cve-2026-73180.md) | Aug 27, 2026 | --- Data as of 2026-11-08T13:06:02Z UTC. 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