DEBIAN-CVE-2026-24734

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2026-24734
Downstream
DSA-6120-1
Published: 17 Feb 2026, 19:21
Last modified:15 Jun 2026, 19:06

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

17 Feb 2026, 19:21
Published
Vulnerability first disclosed
15 Jun 2026, 19:06
Last Modified
Vulnerability information updated

Description

Improper Input Validation vulnerability in Apache Tomcat Native, Apache Tomcat. When using an OCSP responder, Tomcat Native (and Tomcat's FFM port of the Tomcat Native code) did not complete verification or freshness checks on the OCSP response which could allow certificate revocation to be bypassed. This issue affects Apache Tomcat Native:  from 1.3.0 through 1.3.4, from 2.0.0 through 2.0.11; Apache Tomcat: from 11.0.0-M1 through 11.0.17, from 10.1.0-M7 through 10.1.51, from 9.0.83 through 9.0.114. The following versions were EOL at the time the CVE was created but are known to be affected: from 1.1.23 through 1.1.34, from 1.2.0 through 1.2.39. Older EOL versions are not affected. Apache Tomcat Native users are recommended to upgrade to versions 1.3.5 or later or 2.0.12 or later, which fix the issue. Apache Tomcat users are recommended to upgrade to versions 11.0.18 or later, 10.1.52 or later or 9.0.115 or later which fix the issue.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected Systems

  • debian•tomcat10

    < 10.1.52-1~deb12u1 | < 10.1.52-1~deb13u1 | < 10.1.52-1

  • debian•tomcat11

    all | < 11.0.22-1~deb13u1 | < 11.0.18-1

  • debian•tomcat9

    < 9.0.70-2 | < 9.0.70-2 | < 9.0.70-2 | < 9.0.70-2

References (1)