GHSA-7w75-32cg-r6g2
GitHub Security Advisory
Apache Tomcat Denial of Service due to improper input validation vulnerability for HTTP/2 requests
✓ GitHub Reviewed
MODERATE
Has CVE
Advisory Details
Denial of Service due to improper input validation vulnerability for HTTP/2 requests in Apache Tomcat. When processing an HTTP/2 request, if the request exceeded any of the configured limits for headers, the associated HTTP/2 stream was not reset until after all of the headers had been processed.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98.
Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.
Affected Packages
Maven
org.apache.tomcat:tomcat-coyote
Affected versions:
11.0.0-M1
(fixed in 11.0.0-M17)
Maven
org.apache.tomcat:tomcat-coyote
Affected versions:
10.1.0-M1
(fixed in 10.1.19)
Maven
org.apache.tomcat:tomcat-coyote
Affected versions:
9.0.0-M1
(fixed in 9.0.86)
Maven
org.apache.tomcat:tomcat-coyote
Affected versions:
8.5.0
(fixed in 8.5.99)
Maven
org.apache.tomcat.embed:tomcat-embed-core
Affected versions:
8.5.0
(fixed in 8.5.99)
Maven
org.apache.tomcat.embed:tomcat-embed-core
Affected versions:
9.0.0-M1
(fixed in 9.0.86)
Maven
org.apache.tomcat.embed:tomcat-embed-core
Affected versions:
10.1.0-M1
(fixed in 10.1.19)
Maven
org.apache.tomcat.embed:tomcat-embed-core
Affected versions:
11.0.0-M1
(fixed in 11.0.0-M17)
Related CVEs
Key Information
5.0
/10
Dataset
Last updated: September 29, 2025 6:31 AM
Data from GitHub Advisory Database. This information is provided for research and educational purposes.