critical9.8
CVE-2026-43512
DEPRECATED: Authentication Bypass Issues vulnerability in digest authentication in Apache Tomcat.
Impact
DEPRECATED: Authentication Bypass Issues vulnerability in digest authentication in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from before 7.0.0. Older unsupported versions any also be affect Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | org.apache.tomcat.embed:tomcat-embed-core | < 9.0.118 | 9.0.118 |
| maven | org.apache.tomcat:tomcat | < 9.0.118 | 9.0.118 |
| maven | org.apache.tomcat:tomcat-catalina | < 9.0.118 | 9.0.118 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Apache | Tomcat | from 7.0.0 through 7.0.109 from 8.5.0 through 8.5.100 from 9.0.0 before 9.0.118 from 10.1.0 before 10.1.55 from 11.0.0 before 11.0.22 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-h6fc-48rj-7qqh
- https://nvd.nist.gov/vuln/detail/CVE-2026-43512
- https://lists.apache.org/thread/7x09x7o12solvclslw3sz0288xc8wx73
- http://www.openwall.com/lists/oss-security/2026/05/12/8
- https://github.com/apache/tomcat/commit/3d4d3fae07a6cd9c2eb193c5491001740ec64448
- https://github.com/apache/tomcat/commit/6565a6cb6499e56fe2f34457cec99f9d1c4f39e9
- https://github.com/apache/tomcat/commit/a99c355e8199adbfd67c9a1fffbd85b810b196cd
- https://tomcat.apache.org/security-10.html
- https://tomcat.apache.org/security-11.html
- https://tomcat.apache.org/security-9.html