Improper Handling of URL Encoding (Hex Encoding) Affecting tomcat10 package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.37% (30th percentile)

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  • Snyk IDSNYK-ECHOLATEST-TOMCAT10-18001302
  • published17 Jul 2026
  • disclosed14 Jul 2026

Introduced: 14 Jul 2026

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

How to fix?

There is no fixed version for Echo:latest tomcat10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tomcat10 package and not the tomcat10 package as distributed by Echo. See How to fix? for Echo:latest 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