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


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.37% (59th percentile)

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  • Snyk IDSNYK-ORACLE8-TOMCATLIB-14405018
  • published13 Dec 2025
  • disclosed28 Apr 2025

Introduced: 28 Apr 2025

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

How to fix?

Upgrade Oracle:8 tomcat-lib to version 1:9.0.87-1.el8_10.7 or higher.
This issue was patched in ELSA-2025-23048.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tomcat-lib package and not the tomcat-lib package as distributed by Oracle. See How to fix? for Oracle: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