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CVE-2025-31650— Apache Tomcat: DoS via malformed HTTP/2 PRIORITY_UPDATE frame

EPSS 9.55% · P93
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I. Basic Information for CVE-2025-31650

Vulnerability Information
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Vulnerability Title
Apache Tomcat: DoS via malformed HTTP/2 PRIORITY_UPDATE frame
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
清理环节不完整
Source: NVD (National Vulnerability Database)
Vulnerability Title
Apache Tomcat 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Tomcat是美国阿帕奇（Apache）基金会的一款轻量级Web应用服务器。用于实现对Servlet和JavaServer Page（JSP）的支持。 Apache Tomcat 9.0.76至9.0.102版本、10.1.10至10.1.39版本和11.0.0-M2至11.0.5版本存在安全漏洞，该漏洞源于对无效HTTP优先级标头的错误处理导致内存泄漏，可能导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
Apache Software FoundationApache Tomcat 9.0.76 ~ 9.0.102 -

II. Public POCs for CVE-2025-31650

#POC DescriptionSource LinkShenlong Link
1A tool designed to detect the vulnerability **CVE-2025-31650** in Apache Tomcat (versions 10.1.10 to 10.1.39)https://github.com/absholi7ly/TomcatKiller-CVE-2025-31650POC Details
2CVE-2025-31650 PoChttps://github.com/tunahantekeoglu/CVE-2025-31650POC Details
3Nonehttps://github.com/sattarbug/Analysis-of-TomcatKiller---CVE-2025-31650-Exploit-ToolPOC Details
4CVE-2025-31650https://github.com/assad12341/DOS-exploitPOC Details
5CVE-2025-31650https://github.com/assad12341/Dos-exploit-POC Details
6Nonehttps://github.com/obscura-cert/CVE-2025-31650POC Details
7Nonehttps://github.com/B1gN0Se/Tomcat-CVE-2025-31650POC Details
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III. Intelligence Information for CVE-2025-31650

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IV. Related Vulnerabilities

Same product: Apache Tomcat
Same vendor: Apache Software Foundation
Same weakness: CWE-459

V. Comments for CVE-2025-31650

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