VulnerabilityModified

CVE-2025-55668

Session Fixation vulnerability in Apache Tomcat via rewrite valve.

MEDIUM 6.5EPSS 0.83%

Does this matter?

Lower severity and a low EPSS score (0.83%). Track it; it rarely justifies an emergency change on its own.

Description

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. Users are recommended to upgrade to version 11.0.8, 10.1.42 or 9.0.106, which fix the issue.

CVSS 3.1: 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS: 0.83% probability · 56th percentile
CISA KEV: Not listed
Weakness: CWE-384
Affected: apache/tomcat
Source: security@apache.org

References

https://lists.apache.org/thread/v6bknr96rl7l1qxkl1c03v0qdvbbqs47Mailing List, Vendor Advisory
http://www.openwall.com/lists/oss-security/2025/08/13/3

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.