CVE-2026-76183
Apache Tomcat: Bypass of security constraints for WebSocket endpoints
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
Authentication Bypass by Alternate Name vulnerability in Apache Tomcat allowed the security constraints for any WebSocket endpoint to be bypassed. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121. The following versions were EOS 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 11.0.26, 10.1.60 or 9.0.122, which fix the issue.
| CWE | CWE-289 |
| Vendor | apache software foundation |
| Product | apache tomcat |
| Published | Sep 23, 2026 |
| Last Updated | Sep 23, 2026 |
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Affected Versions
Apache Software Foundation / Apache Tomcat
11.0.0-M1 ≤ 11.0.25 10.1.0-M1 ≤ 10.1.59 9.0.0.M1 ≤ 9.0.121 8.5.0 ≤ 8.5.100 7.0.43 ≤ 7.0.109 0 < 7.0.43
References
Credits
Zhang Yilin