apache/tomcat · Security
Apache Tomcat - AJP secret compared in non-constant time
- GHSA ID
- GHSA-9m89-8frq-c98c
- CVE ID
- CVE-2026-43514
- Severity
- low
- Published
- Updated
- CVSS
- 3.7 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
- CVSS v3
- 3.7 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Description
Versions Affected: Apache Tomcat 11.0.0-M1 to 11.0.21 Apache Tomcat 10.1.0-M1 to 10.1.54 Apache Tomcat 9.0.0.M1 to 9.0.117 Older, unsupported versions may also be affected
Description: The AJP secret was compared in non-constant time allowing an attacker on the local network to mount a timing attack to determine the AJP secret.
Mitigation: Users of the affected versions should apply one of the following mitigations:
- Upgrade to Apache Tomcat 11.0.22 or later
- Upgrade to Apache Tomcat 10.1.55 or later
- Upgrade to Apache Tomcat 9.0.118 or later
CWEs
- CWE-208 · Observable Timing Discrepancy
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-43514 ↗
- https://lists.apache.org/thread/2k654v5cq123npfsd1b2kk1y30owqb1m ↗
- http://www.openwall.com/lists/oss-security/2026/05/12/10 ↗
- https://github.com/apache/tomcat/commit/933dcdbf2515972280002929e7e597dead2e9ffa ↗
- https://github.com/apache/tomcat/commit/a102a2a157868ca51d83eaf5a119ccd9976a113e ↗
- https://github.com/apache/tomcat/commit/d35d9d23263c8e4af561f615c960c91697ff200e ↗
- 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-9m89-8frq-c98c ↗