CVE-2026-73180
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
8- osv-coords7 versionspkg:bitnami/tomcatpkg:rpm/opensuse/tomcat&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/tomcat&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/tomcat10&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/tomcat10&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/tomcat11&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/tomcat11&distro=openSUSE%20Tumbleweed
>= 7.0.43, < 9.0.121+ 6 more
- (no CPE)range: >= 7.0.43, < 9.0.121
- (no CPE)range: < 9.0.121-160000.1.1
- (no CPE)range: < 9.0.121-1.1
- (no CPE)range: < 10.1.59-160000.1.1
- (no CPE)range: < 10.1.59-1.1
- (no CPE)range: < 11.0.25-160000.1.1
- (no CPE)range: < 11.0.25-1.1
Patches
Vulnerability mechanics
References
2- www.openwall.com/lists/oss-security/2026/08/26/10nvdThird Party AdvisoryMailing List
- lists.apache.org/thread/3j15vztszpyqss253mjq5v1kp7s6hooqnvdVendor AdvisoryMailing List
News mentions
2- Apache Tomcat Vulnerabilities Let Attackers Bypass Security Controls and Crash ServersCyber Security News · Aug 27, 2026
- Apache: 25 Vulnerabilities Across Tomcat, Camel, Hive, and More Disclosed Aug 24-26Vypr Intelligence · Aug 26, 2026