CVEvulnerability

CVE-2025-53506

7.5 HIGH Published 2025-07-10 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2025-07-10
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-400

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. Other EOL versions may also be affected. Users are recommended to upgrade to version 11.0.9, 10.1.43 or 9.0.107, which fix the issue.

Affected configurations

• apache tomcat (>= 9.0.0 <= 9.0.106) • apache tomcat (>= 10.1.0 <= 10.1.42) • apache tomcat (>= 11.0.0 <= 11.0.8)

Related

Weakness · CWE (1)

  • CWE-400 Uncontrolled Resource Consumption weakness

References