CVE-2025-31650

HIGH EPSS 99.2%
Published Apr 28, 20251y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Apr 28, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

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 could trigger an OutOfMemoryException resulting in a denial of service. This issue affects Apache Tomcat: from 9.0.76 through 9.0.102, from 10.1.10 through 10.1.39, from 11.0.0-M2 through 11.0.5. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.90 though 8.5.100. Users are recommended to upgrade to version 9.0.104, 10.1.40 or 11.0.6 which fix the issue.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
99.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-459

Affected Products 27

VendorProductVersionRange
apachetomcat*≥9.0.76  –  <9.0.104
apachetomcat*≥10.1.10  –  <10.1.40
apachetomcat*≥11.0.1  –  <11.0.6
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any
apachetomcat11.0.0any

References 3

  • openwall.com http://www.openwall.com/lists/oss-security/2025/04/28/2
    Mailing ListThird Party Advisory
  • lists.apache.org https://lists.apache.org/thread/j6zzk0y3yym9pzfzkq5vcyxzz0yzh826
    Mailing ListVendor Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/07/msg00009.html

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.