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CVE-2026-87022

Опубликовано: 23 сент. 2026
Источник: redhat
CVSS3: 6.5
EPSS Низкий

Описание

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.

A flaw was found in Apache Tomcat. This vulnerability, related to improper handling of length parameters, allows for WebSocket message smuggling when the 'per-message-deflate' extension is in use. A remote attacker could exploit this to bypass security controls or inject malicious data into WebSocket communications, potentially leading to unauthorized actions or information disclosure.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10tomcatFix deferred
Red Hat Enterprise Linux 10tomcat9Fix deferred
Red Hat Enterprise Linux 6tomcat6Out of support scope
Red Hat Enterprise Linux 7tomcatOut of support scope
Red Hat Enterprise Linux 8pki-deps:10.6/pki-servlet-engineFix deferred
Red Hat Enterprise Linux 8tomcatFix deferred
Red Hat Enterprise Linux 9pki-servlet-engineFix deferred
Red Hat Enterprise Linux 9tomcatFix deferred
Red Hat Hardened Imageshi/tomcatNot affected
Red Hat JBoss Web Server 5jws5-tomcatFix deferred

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Дополнительная информация

Статус:

Low
Дефект:
CWE-130
https://bugzilla.redhat.com/show_bug.cgi?id=2539373tomcat: Apache Tomcat: WebSocket message smuggling via improper length handling

EPSS

Процентиль: 46%
0.0054
Низкий

6.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 7.5
ubuntu
около 2 месяцев назад

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.

CVSS3: 7.5
nvd
около 2 месяцев назад

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.

CVSS3: 7.5
debian
около 2 месяцев назад

Improper handling of length parameter inconsistency vulnerability in A ...

CVSS3: 7.5
redos
17 дней назад

Уязвимость tomcat11

CVSS3: 7.5
redos
17 дней назад

Уязвимость tomcat10

EPSS

Процентиль: 46%
0.0054
Низкий

6.5 Medium

CVSS3