Improper Handling of URL Encoding (Hex Encoding) Affecting tomcat-webapps package, versions <1:9.0.120-1.el8_10


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.37% (29th percentile)

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  • Snyk IDSNYK-ROCKY8-TOMCATWEBAPPS-19958612
  • published20 Sept 2026
  • disclosed14 Jul 2026

Introduced: 14 Jul 2026

CVE-2026-59083  (opens in a new tab)
CWE-177  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 tomcat-webapps to version 1:9.0.120-1.el8_10 or higher.
This issue was patched in RLSA-2026:68677.

NVD Description

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

Improper Handling of URL Encoding (Hex Encoding) vulnerability in Apache Tomcat's rewrite valve allowed security constraint bypass for some configurations.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.23, from 10.1.0-M1 through 10.1.56, from 9.0.0.M1 through 9.0.119, from 8.5.0 through 8.5.100. Other versions that have reached end of support may also be affected.

Users are recommended to upgrade to version 11.0.24, 10.1.57 or 9.0.120, which fix the issue.

CVSS Base Scores

version 3.1