Improper Authentication Affecting tomcat9 package, versions <9.0.70-2


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

Social Trends
EPSS
0.47% (38th percentile)

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  • Snyk IDSNYK-ECHOLATEST-TOMCAT9-18001193
  • published17 Jul 2026
  • disclosed29 Jun 2026

Introduced: 29 Jun 2026

CVE-2026-55955  (opens in a new tab)
CWE-287  (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 Authentication vulnerability in Apache Tomcat allowed a replay attack against the EncryptionInterceptor in the cluster component.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.13 through 9.0.18, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109.

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

CVSS Base Scores

version 3.1