Vulnerability in Apache Tomcat
CVE-2025-55668
Session Fixation vulnerability in Apache Tomcat via rewrite valve. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.7, from 10.1.0-M1 through 10.1.41, from 9.0.0.M1 through 9.0.105. Older, EOL versions may also be affected. …
EPSS: 0.008 (51.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
Affected products
- Apache Tomcat — versions 9.0.0
- Apache Software Foundation Tomcat — versions 11.0.0-M1, 10.1.0-M1, 9.0.0.M1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (vendor-advisory, Mailing List, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2025-55668?
- CVE-2025-55668 is a medium-severity vulnerability in Apache Tomcat, classified under Session Fixation. CVSS score: 6.5/10. Published 2025-08-13.
- How severe is CVE-2025-55668?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2025-55668 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.