CVE-2026-34487
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
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.
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2026-34487
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2026-34487.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 9.0.70-2 |
| debian | forky | fixed | 10.1.54-1 |
| debian | sid | fixed | 10.1.54-1 |
| debian | trixie | fixed | 9.0.70-2 |
| debian | bullseye | fixed | 9.0.70-2 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Maven | org.apache.tomcat:tomcat-catalina | >=9.0.13,<9.0.117 | 9.0.117 |
| Maven | org.apache.tomcat:tomcat-catalina | >=10.1.0-M1,<10.1.54 | 10.1.54 |
| Maven | org.apache.tomcat:tomcat-catalina | >=11.0.0-M1,<11.0.21 | 11.0.21 |
| Maven | org.apache.tomcat:tomcat | >=9.0.13,<9.0.117 | 9.0.117 |
| Maven | org.apache.tomcat:tomcat | >=10.1.0-M1,<10.1.54 | 10.1.54 |
| Maven | org.apache.tomcat:tomcat | >=11.0.0-M1,<11.0.21 | 11.0.21 |
| Maven | org.apache.tomcat.embed:tomcat-embed-core | >=9.0.13,<9.0.117 | 9.0.117 |
| Maven | org.apache.tomcat.embed:tomcat-embed-core | >=10.1.0-M1,<10.1.54 | 10.1.54 |
| Maven | org.apache.tomcat.embed:tomcat-embed-core | >=11.0.0-M1,<11.0.21 | 11.0.21 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| gcp | | |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-34487
- https://github.com/apache/tomcat
- https://lists.apache.org/thread/4xpkwolpkrj8v5xzp5nyovtlqp3y850h
- http://www.openwall.com/lists/oss-security/2026/04/09/28
- https://www.suse.com/security/cve/CVE-2026-34487.html
- https://security-tracker.debian.org/tracker/CVE-2026-34487
Verify integrity in audit chain (admin only). AS-IS.