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Advisory record · GHSA-9m89-8frq-c98c

Apache Tomcat - AJP secret compared in non-constant time

CVSS 3.7 LowEPSS 0.0035 · 28th percentile

Published by the GitHub Advisory Database at 12 May 2026, 18:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.apache.tomcat.embed:tomcat-embed-coreMaven<9.0.118 || >=10.1.0-M1, <10.1.55 || >=11.0.0-M1, <11.0.229.0.118, 10.1.55, 11.0.22
org.apache.tomcat:tomcatMaven<9.0.118 || >=10.1.0-M1, <10.1.55 || >=11.0.0-M1, <11.0.229.0.118, 10.1.55, 11.0.22
org.apache.tomcat:tomcat-catalinaMaven<9.0.118 || >=10.1.0-M1, <10.1.55 || >=11.0.0-M1, <11.0.229.0.118, 10.1.55, 11.0.22
Identifiers
GHSA-9m89-8frq-c98c · BIT-tomcat-2026-43514 · CVE-2026-43514
Weakness (CWE)
CWE-208
Tags
Published
12 May 2026
Updated
11 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Apache Tomcat versions 9.0.0-M1 to 9.0.117, 10.1.0-M1 to 10.1.54, and 11.0.0-M1 to 11.0.21 are affected, as are the tomcat-embed-core, tomcat, and tomcat-catalina packages. An attacker on the local network can use a timing attack to recover the AJP secret, because it is compared in non-constant time. Upgrade to Tomcat 9.0.118, 10.1.55, or 11.0.22 or later.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
3.7 Low 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS 0.0035, the 28th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:16 UTC First seen by agentprime
  2. 31 Oct 2026, 14:16 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.