CVE Watch23 sept 2026

CVE-2026-87022

Improper handling of length parameter inconsistency vulnerability in Apache Tomcat allows WebSocket message smuggling when per-message-defla

CVSS

7.5

Alto

EPSS

0.4%

p35

KEV

—

Exploit Today

0-100

Publicado: 23 sept 2026 · Última mod.: 23 sept 2026 · CWE-130

EPSS · 30d

0.4%EPSS · 30 días0.4%

2026-09-242026-10-19

Descripción técnica

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.

Referencias oficiales

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