CVE-2025-53506

CVE Details

Release Date:2025-07-10
Impact:Moderate What is this?

Description


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. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Users are recommended to upgrade to version 11.0.9, 10.1.43 or 9.0.107, which fix the issue.

See more information about CVE-2025-53506 from MITRE CVE dictionary and NIST NVD


NOTE: The following CVSS metrics and score provided are preliminary and subject to review.


CVSS v3 metrics

Base Score: 5.3
Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Version: 3.1
Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality Impact: None
Integrity Impact: None
Availability Impact: Low

Errata information


PlatformErrataRelease Date
Oracle Linux version 10 (tomcat) ELSA-2025-141792025-08-22
Oracle Linux version 10 (tomcat9) ELSA-2025-141782025-08-21
Oracle Linux version 8 (tomcat) ELSA-2025-141772025-08-20
Oracle Linux version 9 (tomcat) ELSA-2025-141812025-08-20


This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections:

software.hardware.complete