apache/tomcat · Security
Apache Tomcat - HTTP/2 no-authority bypass of strict SNI validation
- GHSA ID
- GHSA-f525-44xv-f2qj
- CVE ID
- CVE-2026-65637
- Severity
- critical
- Published
- Updated
- CVSS
- 9.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS v3
- 9.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
Improper Input Validation vulnerability in Apache Tomcat due to incomplete fix for CVE-2026-32990.
This issue affects Apache Tomcat: from 11.0.20 through 11.0.24, from 10.1.53 through 10.1.57, from 9.0.115 through 9.0.120.
Users are recommended to upgrade to version 11.0.25, 10.1.59 or 9.0.121, which fix the issue.
CWEs
- CWE-20 · Improper Input Validation
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-65637 ↗
- https://lists.apache.org/thread/djog953z1ohsyt25bdvhfzbmsy22vgcj ↗
- https://github.com/apache/tomcat/commit/40012414df828a56126f76a7339669c7c919aae7 ↗
- https://github.com/apache/tomcat/commit/8639b20f045c88f356b887204f52e897399f0de7 ↗
- https://github.com/apache/tomcat/commit/b823e88da077f5fa973e34d72359bded9f621e3c ↗
- https://github.com/apache/tomcat/releases/tag/10.1.58 ↗
- https://github.com/apache/tomcat/releases/tag/11.0.25 ↗
- https://github.com/apache/tomcat/releases/tag/9.0.121 ↗
- https://tomcat.apache.org/security-10.html ↗
- https://tomcat.apache.org/security-11.html ↗
- https://tomcat.apache.org/security-9.html ↗
- https://github.com/advisories/GHSA-f525-44xv-f2qj ↗