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CVE-2026-87022

Apache Tomcat: WebSocket message smuggling with per-message-deflate PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Apache Software Foundation / Apache Tomcataffected 11.0.0-M1 through 11.0.25; affected 10.1.0-M1 through 10.1.59; affected 9.0.0.M1 through 9.0.121; affected 8.5.0 through 8.5.100; affected 7.0.56 through 7.0.109

CWE

CWE-130

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.