high7.5
CVE-2026-34487
Insertion of Sensitive Information into Log File vulnerability in the cloud membership for clustering component of Apache Tomcat exposed the Kubernetes bearer …
Impact
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
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | org.apache.tomcat:tomcat | >= 9.0.13, < 9.0.117 | 9.0.117 |
| maven | org.apache.tomcat:tomcat-tribes | >= 9.0.13, < 9.0.117 | 9.0.117 |
| maven | org.apache.tomcat.embed:tomcat-embed-core | >= 9.0.13, < 9.0.117 | 9.0.117 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Apache | Tomcat | from 9.0.13 before 9.0.117 from 10.1.0 before 10.1.54 from 11.0.0 before 11.0.21 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://lists.apache.org/thread/4xpkwolpkrj8v5xzp5nyovtlqp3y850h
- http://www.openwall.com/lists/oss-security/2026/04/09/28
- https://github.com/advisories/GHSA-x4m4-345f-5h5g
- https://nvd.nist.gov/vuln/detail/CVE-2026-34487
- 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