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CVE-2026-55956

Опубликовано: 29 июн. 2026
Источник: redhat
CVSS3: 6.5
EPSS Низкий

Описание

Improper Authorization vulnerability in Apache Tomcat leads to security constraints specified for the default servlet ignoring any method or method omission configured as part of the constraint. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.

A flaw was found in Apache Tomcat where access control rules for the default servlet are improperly handled. An attacker can exploit this issue to bypass specific HTTP method restrictions, potentially gaining unauthorized access to protected application resources.

Отчет

A security flaw in Apache Tomcat allows an attacker to bypass specific HTTP method restrictions on the default servlet. Red Hat products utilizing affected Tomcat versions are vulnerable if they rely on these method-specific security constraints. This could potentially enable unauthorized access to restricted application resources.

Меры по смягчению последствий

Review your application's web.xml file. Ensure security constraints explicitly deny unauthorized users by path, rather than relying strictly on filtering specific HTTP methods (like GET or POST).

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 JBoss Web Server 5jws5-tomcatOut of support scope
Red Hat JBoss Web Server 6.2.4tomcat-catalinaFixedRHSA-2026:4340222.07.2026

Показывать по

Дополнительная информация

Статус:

Moderate
Дефект:
CWE-551
https://bugzilla.redhat.com/show_bug.cgi?id=2494676tomcat: Apache Tomcat: Improper Authorization Allows Security Constraint Bypass

EPSS

Процентиль: 72%
0.01531
Низкий

6.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 6.5
ubuntu
около 1 месяца назад

Improper Authorization vulnerability in Apache Tomcat leads to security constraints specified for the default servlet ignoring any method or method omission configured as part of the constraint. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.

CVSS3: 6.5
nvd
около 1 месяца назад

Improper Authorization vulnerability in Apache Tomcat leads to security constraints specified for the default servlet ignoring any method or method omission configured as part of the constraint. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.

CVSS3: 6.5
debian
около 1 месяца назад

Improper Authorization vulnerability in Apache Tomcat leads to securit ...

CVSS3: 6.5
github
около 1 месяца назад

Improper Authorization vulnerability in Apache Tomcat leads to security constraints specified for the default servlet ignoring any method or method omission configured as part of the constraint. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.

suse-cvrf
17 дней назад

Security update for tomcat11

EPSS

Процентиль: 72%
0.01531
Низкий

6.5 Medium

CVSS3