apache/tomcat · Security
Apache Tomcat vulnerable to Insertion of Sensitive Information into Log File
- GHSA ID
- GHSA-x4m4-345f-5h5g
- CVE ID
- CVE-2026-34487
- Severity
- high
- Published
- Updated
- CVSS
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CVSS v3
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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.
CWEs
- CWE-532 · Insertion of Sensitive Information into Log File
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-34487 ↗
- https://lists.apache.org/thread/4xpkwolpkrj8v5xzp5nyovtlqp3y850h ↗
- http://www.openwall.com/lists/oss-security/2026/04/09/28 ↗
- https://github.com/apache/tomcat/commit/301bc6efbf72feb14dacfdfa3f50372182736150 ↗
- https://github.com/apache/tomcat/commit/5eff2a773b8b728083e5195b3183df1b9e12a03d ↗
- https://github.com/apache/tomcat/commit/f593292a082e5ef9336a8db2b4b522f7f3e36976 ↗
- 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-x4m4-345f-5h5g ↗