Improper Encoding or Escaping of Output Affecting tomcat-docs-webapp package, versions <1:9.0.87-1.el8_10.7


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.06% (19th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Improper Encoding or Escaping of Output vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-ALMALINUX8-TOMCATDOCSWEBAPP-14408063
  • published13 Dec 2025
  • disclosed10 Dec 2025

Introduced: 10 Dec 2025

NewCVE-2025-31651  (opens in a new tab)
CWE-116  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 tomcat-docs-webapp to version 1:9.0.87-1.el8_10.7 or higher.
This issue was patched in ALSA-2025:23048.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tomcat-docs-webapp package and not the tomcat-docs-webapp package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in Apache Tomcat. For a subset of unlikely rewrite rule configurations, it was possible for a specially crafted request to bypass some rewrite rules. If those rewrite rules effectively enforced security constraints, those constraints could be bypassed.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.5, from 10.1.0-M1 through 10.1.39, from 9.0.0.M1 through 9.0.102. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions may also be affected.

Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.

CVSS Base Scores

version 3.1