CVE-2025-31650
Apache Tomcat HTTP Priority Header Memory Leak DoS
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. Users are recommended to upgrade to version 9.0.104, 10.1.40 or 11.0.6 which fix the issue.
INFO
Published Date :
April 28, 2025, 8:15 p.m.
Last Modified :
May 6, 2025, 8:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2025-31650 has a 3 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-31650.
| URL | Resource |
|---|---|
| https://lists.apache.org/thread/j6zzk0y3yym9pzfzkq5vcyxzz0yzh826 | Mailing List Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2025/04/28/2 | Mailing List Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Python
CVE-2025-31650 PoC
Python
A tool designed to detect the vulnerability **CVE-2025-31650** in Apache Tomcat (versions 10.1.10 to 10.1.39)
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-31650 vulnerability anywhere in the article.
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Cyber Security News
Apache Tomcat Vulnerability Let Attackers Bypass Rules & Trigger DoS Condition
The Apache Software Foundation disclosed a significant security vulnerability in Apache Tomcat that could allow attackers to bypass security rules and trigger denial-of-service conditions through mani ... Read more
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Daily CyberSecurity
Apache Tomcat Security Update Fixes DoS and Rewrite Rule Bypass Flaws
The Apache Software Foundation has released important security updates to address two vulnerabilities affecting multiple versions of Apache Tomcat, the widely used open-source Java Servlet container. ... Read more
The following table lists the changes that have been made to the
CVE-2025-31650 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
May. 06, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H -
CVE Modified by [email protected]
May. 06, 2025
Action Type Old Value New Value Added CWE CWE-459 Removed CWE CWE-20 -
Initial Analysis by [email protected]
May. 05, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-459 Added CPE Configuration OR *cpe:2.3:a:apache:tomcat:11.0.0:milestone2:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone4:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone3:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone5:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone7:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone8:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone10:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone11:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone12:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone13:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone14:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone15:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone16:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone17:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone18:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone19:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone6:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone9:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* versions from (including) 9.0.76 up to (excluding) 9.0.104 *cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* versions from (including) 10.1.10 up to (excluding) 10.1.40 *cpe:2.3:a:apache:tomcat:11.0.0:milestone20:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone21:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone22:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone23:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone24:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:11.0.0:milestone25:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* versions from (including) 11.0.1 up to (excluding) 11.0.6 Added Reference Type CVE: http://www.openwall.com/lists/oss-security/2025/04/28/2 Types: Mailing List, Third Party Advisory Added Reference Type Apache Software Foundation: https://lists.apache.org/thread/j6zzk0y3yym9pzfzkq5vcyxzz0yzh826 Types: Mailing List, Vendor Advisory -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Apr. 28, 2025
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2025/04/28/2 -
New CVE Received by [email protected]
Apr. 28, 2025
Action Type Old Value New Value Added 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. Users are recommended to upgrade to version 9.0.104, 10.1.40 or 11.0.6 which fix the issue. Added CWE CWE-20 Added Reference https://lists.apache.org/thread/j6zzk0y3yym9pzfzkq5vcyxzz0yzh826
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-31650 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-31650
weaknesses.