PT-2025-28240 · Apache+10 · Apache Tomcat+11

Kanatoko · Published 2025-01-01 · Updated 2026-06-02 · CVE-2025-53506

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: Apache Tomcat versions 11.0.0-M1 through 11.0.8 Apache Tomcat versions 10.1.0-M1 through 10.1.42 Apache Tomcat versions 9.0.0.M1 through 9.0.106

Description: An uncontrolled resource consumption issue exists in Apache Tomcat when an HTTP/2 client fails to acknowledge the initial settings frame, leading to a reduction in the maximum permitted concurrent streams.

Recommendations: Upgrade to Apache Tomcat version 11.0.9. Upgrade to Apache Tomcat version 10.1.43. Upgrade to Apache Tomcat version 9.0.107.

Fix

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

ALSA-2025:14177

ALSA-2025:14178

ALSA-2025:14181

ALT-PU-2025-13135

BDU:2025-08952

BIT-TOMCAT-2025-53506

CESA-2025_14177

CVE-2025-53506

DLA-4244-1

GHSA-25XR-QJ8W-C4VF

INFSA-2025_14177

INFSA-2025_14181

MGASA-2025-0223

OESA-2025-1892

OESA-2025-1893

OESA-2025-1894

OESA-2025-1895

OESA-2025-1896

OESA-2025-1897

OPENSUSE-SU-2025:15440-1

OPENSUSE-SU-2025:15441-1

OPENSUSE-SU-2025:15442-1

RHSA-2025:11695

RHSA-2025:11741

RHSA-2025:14177

RHSA-2025:14178

RHSA-2025:14179

RHSA-2025:14180

RHSA-2025:14181

RHSA-2025:14182

RHSA-2025:14183

RHSA-2025_14177

RHSA-2025_14181

SUSE-SU-2025:02745-1

SUSE-SU-2025:02978-1

SUSE-SU-2025:02979-1

SUSE-SU-2025:03024-1

SUSE-SU-2025_02745-1

SUSE-SU-2025_02978-1

SUSE-SU-2025_02979-1

SUSE-SU-2025_03024-1

SUSE-SU-2026:1058-1

Affected Products

Alt Linux

Almalinux

Apache Tomcat

Astra Linux

Bamboo

Bitbucket

Centos

Debian

Red Hat

Red Os

Rocky Linux

Suse

References · 157

• https://osv.dev/vulnerability/ALSA-2025:14178 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2025-1896 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:02979-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:1058-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-52434 · Security Note
• https://osv.dev/vulnerability/BIT-tomcat-2025-53506 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2025:14177 · Vendor Advisory
• https://errata.almalinux.org/10/ALSA-2025-14178.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-53506 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:02978-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-53506 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2025:14181 · Vendor Advisory
• https://errata.rockylinux.org/RLSA-2025:14177 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2025-1892 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2025-14181.html · Vendor Advisory