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GHSA-x4m4-345f-5h5g

HIGHFix: apache/tomcat@301bc6e

GHSA-x4m4-345f-5h5g is a high-severity (CVSS 7.5) CWE-532 vulnerability in org.apache.tomcat:tomcat-tribes. O3 Security confirms whether GHSA-x4m4-345f-5h5g is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Apache Tomcat vulnerable to Insertion of Sensitive Information into Log File

Also known asBIT-tomcat-2026-34487CVE-2026-34487
Published
Apr 9, 2026
Updated
Jun 18, 2026
Affected
6 pkgs
Patched
6 / 6
Exploits
None indexed

Real-World Exposure

6 pkgs affected
org.apache.tomcat:tomcat-tribesorg.apache.tomcat:tomcat-tribesorg.apache.tomcat:tomcat-tribesorg.apache.tomcat:tomcatorg.apache.tomcat:tomcatorg.apache.tomcat:tomcat

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

Insertion of Sensitive Information into Log File vulnerability in the cloud membership for clustering component of Apache Tomcat exposed the Kubernetes bearer token.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.20, from 10.1.0-M1 through 10.1.53, from 9.0.13 through 9.0.116.

Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fix the issue.

Affected Packages

6 total 6 fixed
EcosystemPackageVulnerable rangeFix
Mavenorg.apache.tomcat:tomcat-tribes9.0.13&&< 9.0.1179.0.117
Mavenorg.apache.tomcat:tomcat-tribes10.1.0-M1&&< 10.1.5410.1.54
Mavenorg.apache.tomcat:tomcat-tribes11.0.0-M1&&< 11.0.2111.0.21
Mavenorg.apache.tomcat:tomcat9.0.13&&< 9.0.1179.0.117
Mavenorg.apache.tomcat:tomcat10.1.0-M1&&< 10.1.5410.1.54
Mavenorg.apache.tomcat:tomcat11.0.0-M1&&< 11.0.2111.0.21

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.tomcat:tomcat-tribes. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update org.apache.tomcat:tomcat-tribes to 9.0.117 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-x4m4-345f-5h5g is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-x4m4-345f-5h5g is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-x4m4-345f-5h5g. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Insertion of Sensitive Information into Log File vulnerability in the cloud membership for clustering component of Apache Tomcat exposed the Kubernetes bearer token. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.20, from 10.1.0-M1 through 10.1.53, from 9.0.13 through 9.0.116. Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fix the issue.
O3 Security · Impact-Aware SCA

Is GHSA-x4m4-345f-5h5g in your dependencies?

O3 detects GHSA-x4m4-345f-5h5g across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.