Improper Handling of Length Parameter Inconsistency Affecting tomcat10 package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.42% (34th percentile)

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  • Snyk IDSNYK-ECHOLATEST-TOMCAT10-20079409
  • published24 Sept 2026
  • disclosed23 Sept 2026

Introduced: 23 Sep 2026

NewCVE-2026-87022  (opens in a new tab)
CWE-130  (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 length parameter inconsistency vulnerability in Apache Tomcat allows WebSocket message smuggling when per-message-deflate is used.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121.

The following versions were EOS at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.56 through 7.0.109. Other unsupported versions may also be affected.

Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.1.22, which fix the issue.

CVSS Base Scores

version 3.1