GSA_kwCzR0hTQS0yNXhyLXFqOHctYzR2Zs4ABKB0

Moderate CVSS: 6.3 EPSS: 0.00078% (0.24093 Percentile) EPSS:

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Apache Tomcat Coyote vulnerable to Denial of Service via excessive HTTP/2 streams

Affected Packages	Affected Versions	Fixed Versions
maven:org.apache.tomcat:tomcat-coyote	>= 9.0.0.M1, < 9.0.107, >= 10.1.0-M1, < 10.1.43, >= 11.0.0-M1, < 11.0.9	9.0.107, 10.1.43, 11.0.9
232 Dependent packages 2,130 Dependent repositories Affected Version Ranges All affected versions 7.0.0, 7.0.2, 7.0.4, 7.0.5, 7.0.6, 7.0.8, 7.0.11, 7.0.12, 7.0.14, 7.0.16, 7.0.19, 7.0.20, 7.0.21, 7.0.22, 7.0.23, 7.0.25, 7.0.26, 7.0.27, 7.0.28, 7.0.29, 7.0.30, 7.0.32, 7.0.33, 7.0.34, 7.0.35, 7.0.37, 7.0.39, 7.0.40, 7.0.41, 7.0.42, 7.0.47, 7.0.50, 7.0.52, 7.0.53, 7.0.54, 7.0.55, 7.0.56, 7.0.57, 7.0.59, 7.0.61, 7.0.62, 7.0.63, 7.0.64, 7.0.65, 7.0.67, 7.0.68, 7.0.69, 7.0.70, 7.0.72, 7.0.73, 7.0.75, 7.0.76, 7.0.77, 7.0.78, 7.0.79, 7.0.81, 7.0.82, 7.0.84, 7.0.85, 7.0.86, 7.0.88, 7.0.90, 7.0.91, 7.0.92, 7.0.93, 7.0.94, 7.0.96, 7.0.99, 7.0.100, 7.0.103, 7.0.104, 7.0.105, 7.0.106, 7.0.107, 7.0.108, 7.0.109, 8.0.1, 8.0.3, 8.0.5, 8.0.8, 8.0.9, 8.0.11, 8.0.12, 8.0.14, 8.0.15, 8.0.17, 8.0.18, 8.0.20, 8.0.21, 8.0.22, 8.0.23, 8.0.24, 8.0.26, 8.0.27, 8.0.28, 8.0.29, 8.0.30, 8.0.32, 8.0.33, 8.0.35, 8.0.36, 8.0.37, 8.0.38, 8.0.39, 8.0.41, 8.0.42, 8.0.43, 8.0.44, 8.0.45, 8.0.46, 8.0.47, 8.0.48, 8.0.49, 8.0.50, 8.0.51, 8.0.52, 8.0.53, 8.5.0, 8.5.2, 8.5.3, 8.5.4, 8.5.5, 8.5.6, 8.5.8, 8.5.9, 8.5.11, 8.5.12, 8.5.13, 8.5.14, 8.5.15, 8.5.16, 8.5.19, 8.5.20, 8.5.21, 8.5.23, 8.5.24, 8.5.27, 8.5.28, 8.5.29, 8.5.30, 8.5.31, 8.5.32, 8.5.33, 8.5.34, 8.5.35, 8.5.37, 8.5.38, 8.5.39, 8.5.40, 8.5.41, 8.5.42, 8.5.43, 8.5.45, 8.5.46, 8.5.47, 8.5.49, 8.5.50, 8.5.51, 8.5.53, 8.5.54, 8.5.55, 8.5.56, 8.5.57, 8.5.58, 8.5.59, 8.5.60, 8.5.61, 8.5.63, 8.5.64, 8.5.65, 8.5.66, 8.5.68, 8.5.69, 8.5.70, 8.5.71, 8.5.72, 8.5.73, 8.5.75, 8.5.76, 8.5.77, 8.5.78, 8.5.79, 8.5.81, 8.5.82, 8.5.83, 8.5.84, 8.5.85, 8.5.86, 8.5.87, 8.5.88, 8.5.89, 8.5.90, 8.5.91, 8.5.92, 8.5.93, 8.5.94, 8.5.95, 8.5.96, 8.5.97, 8.5.98, 8.5.99, 8.5.100, 9.0.1, 9.0.2, 9.0.4, 9.0.5, 9.0.6, 9.0.7, 9.0.8, 9.0.10, 9.0.11, 9.0.12, 9.0.13, 9.0.14, 9.0.16, 9.0.17, 9.0.19, 9.0.20, 9.0.21, 9.0.22, 9.0.24, 9.0.26, 9.0.27, 9.0.29, 9.0.30, 9.0.31, 9.0.33, 9.0.34, 9.0.35, 9.0.36, 9.0.37, 9.0.38, 9.0.39, 9.0.40, 9.0.41, 9.0.43, 9.0.44, 9.0.45, 9.0.46, 9.0.48, 9.0.50, 9.0.52, 9.0.53, 9.0.54, 9.0.55, 9.0.56, 9.0.58, 9.0.59, 9.0.60, 9.0.62, 9.0.63, 9.0.64, 9.0.65, 9.0.67, 9.0.68, 9.0.69, 9.0.70, 9.0.71, 9.0.72, 9.0.73, 9.0.74, 9.0.75, 9.0.76, 9.0.78, 9.0.79, 9.0.80, 9.0.81, 9.0.82, 9.0.83, 9.0.84, 9.0.85, 9.0.86, 9.0.87, 9.0.88, 9.0.89, 9.0.90, 9.0.91, 9.0.93, 9.0.94, 9.0.95, 9.0.96, 9.0.97, 9.0.98, 10.1.0, 10.1.0-M1, 10.1.0-M2, 10.1.0-M4, 10.1.0-M5, 10.1.0-M6, 10.1.0-M7, 10.1.0-M8, 10.1.0-M10, 10.1.0-M11, 10.1.0-M12, 10.1.0-M14, 10.1.0-M15, 10.1.0-M16, 10.1.0-M17, 10.1.1, 10.1.2, 10.1.4, 10.1.5, 10.1.6, 10.1.7, 10.1.8, 10.1.9, 10.1.10, 10.1.11, 10.1.12, 10.1.13, 10.1.14, 10.1.15, 10.1.16, 10.1.17, 10.1.18, 10.1.19, 10.1.20, 10.1.23, 10.1.24, 10.1.25, 10.1.26, 10.1.28, 10.1.29, 10.1.30, 10.1.31, 10.1.33, 10.1.34, 11.0.0, 11.0.0-M1, 11.0.0-M3, 11.0.0-M4, 11.0.0-M5, 11.0.0-M6, 11.0.0-M7, 11.0.0-M9, 11.0.0-M10, 11.0.0-M11, 11.0.0-M12, 11.0.0-M13, 11.0.0-M14, 11.0.0-M15, 11.0.0-M16, 11.0.0-M17, 11.0.0-M18, 11.0.0-M19, 11.0.0-M20, 11.0.0-M21, 11.0.0-M22, 11.0.0-M24, 11.0.0-M25, 11.0.0-M26, 11.0.1, 11.0.2 All unaffected versions 10.0.0, 10.0.2, 10.0.4, 10.0.5, 10.0.6, 10.0.7, 10.0.8, 10.0.10, 10.0.11, 10.0.12, 10.0.13, 10.0.14, 10.0.16, 10.0.17, 10.0.18, 10.0.20, 10.0.21, 10.0.22, 10.0.23, 10.0.26, 10.0.27

Uncontrolled Resource Consumption vulnerability in Apache Tomcat if an HTTP/2 client did not acknowledge the initial settings frame that reduces the maximum permitted concurrent streams.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.8, from 10.1.0-M1 through 10.1.42, from 9.0.0.M1 through 9.0.106.

Users are recommended to upgrade to version 11.0.9, 10.1.43 or 9.0.107, which fix the issue.

References:

Identifiers

GHSA-25xr-qj8w-c4vf

CVE-2025-53506

Risk

Severity

Moderate

CVSS

CVSS Score: 6.3

CVSS vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:U

EPSS

EPSS Percentage: 0.00078

EPSS Percentile: 0.24093

Classification

General

Source

GitHub Advisory Database

Origin

Unspecified

Repository

https://github.com/apache/tomcat

Date and time

Published

20 days ago

Updated

18 days ago

API

JSON

ecosyste.ms

Data

Tools

Indexes

Applications

Experiments

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