Improper Authorization Affecting tomcat9 package, versions <9.0.70-2


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
1.53% (73rd percentile)

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  • Snyk IDSNYK-ECHOLATEST-TOMCAT9-18001195
  • published17 Jul 2026
  • disclosed29 Jun 2026

Introduced: 29 Jun 2026

CVE-2026-55956  (opens in a new tab)
CWE-285  (opens in a new tab)

How to fix?

Upgrade Echo:latest tomcat9 to version 9.0.70-2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tomcat9 package and not the tomcat9 package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

Improper Authorization vulnerability in Apache Tomcat leads to security constraints specified for the default servlet ignoring any method or method omission configured as part of the constraint.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other versions that have reached end of support may also be affected.

Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.

CVSS Base Scores

version 3.1