Vulnerability in Apache Tomcat
CVE-2025-31650
Improper Input Validation vulnerability in Apache Tomcat. Incorrect error handling for some invalid HTTP priority headers resulted in incomplete clean-up of the failed request which created a memory leak. A large number of such requests co…
EPSS: 0.662 (99.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Apache Tomcat — versions 11.0.0
- Apache Software Foundation Tomcat — versions 9.0.76, 10.1.10, 11.0.0-M2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (vendor-advisory, Mailing List, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2025-31650?
- CVE-2025-31650 is a high-severity vulnerability in Apache Tomcat, classified under Incomplete Cleanup. CVSS score: 7.5/10. Published 2025-04-28.
- How severe is CVE-2025-31650?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2025-31650 known to be exploited?
- 13 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.