Medium severity · published Aug 13, 2025
CVE-2025-55668
Session Fixation vulnerability in Apache Tomcat via rewrite valve
6.5
CVSS
0.9%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TO
Tomcat · Apache
9.0.1 before 9.0.106; 10.0.0 before 10.1.42; 11.0.0 before 11.0.8; 9.0.0; 9.0.0; 9.0.0; +24 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-55668
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-55668
Mailing List
https://lists.apache.org/thread/v6bknr96rl7l1qxkl1c03v0qdvbbqs47
www.openwall.com
http://www.openwall.com/lists/oss-security/2025/08/13/3
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