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CVE-2026-23901

Опубликовано: 10 фев. 2026
Источник: redhat
CVSS3: 2.9
EPSS Низкий

Описание

Observable Timing Discrepancy vulnerability in Apache Shiro. This issue affects Apache Shiro: from 1., 2. before 2.0.7. Users are recommended to upgrade to version 2.0.7 or later, which fixes the issue. Prior to Shiro 2.0.7, code paths for non-existent vs. existing users are different enough, that a brute-force attack may be able to tell, by timing the requests only, determine if the request failed because of a non-existent user vs. wrong password. The most likely attack vector is a local attack only. Shiro security model  https://shiro.apache.org/security-model.html#username_enumeration  discusses this as well. Typically, brute force attack can be mitigated at the infrastructure level.

An Observable Timing Discrepancy vulnerability has been discovered in Apache Shiro. This issue affects Apache Shiro: from 1., 2. before 2.0.7. Users are recommended to upgrade to version 2.0.7 or later, which fixes the issue. Prior to Shiro 2.0.7, code paths for non-existent vs. existing users are different enough, that a brute-force attack may be able to tell, by timing the requests only, determine if the request failed because of a non-existent user vs. wrong password. The most likely attack vector is a local attack only. Shiro security model https://shiro.apache.org/security-model.html#username_enumeration discusses this as well.

Меры по смягчению последствий

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat build of Apache Camel for Spring Boot 4shiro-coreFix deferred
Red Hat Fuse 7shiro-coreFix deferred
Red Hat JBoss Enterprise Application Platform 7shiro-coreFix deferred
Red Hat JBoss Enterprise Application Platform 8shiro-coreFix deferred
Red Hat JBoss Enterprise Application Platform Expansion Packshiro-coreFix deferred

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Дополнительная информация

Статус:

Low
Дефект:
CWE-208
https://bugzilla.redhat.com/show_bug.cgi?id=2438436org.apache.shiro/shiro-core: Apache Shiro: Brute force attack possible to determine valid user names

EPSS

Процентиль: 1%
0.00009
Низкий

2.9 Low

CVSS3

Связанные уязвимости

CVSS3: 2.5
ubuntu
около 2 месяцев назад

Observable Timing Discrepancy vulnerability in Apache Shiro. This issue affects Apache Shiro: from 1.*, 2.* before 2.0.7. Users are recommended to upgrade to version 2.0.7 or later, which fixes the issue. Prior to Shiro 2.0.7, code paths for non-existent vs. existing users are different enough, that a brute-force attack may be able to tell, by timing the requests only, determine if the request failed because of a non-existent user vs. wrong password. The most likely attack vector is a local attack only. Shiro security model https://shiro.apache.org/security-model.html#username_enumeration discusses this as well. Typically, brute force attack can be mitigated at the infrastructure level.

CVSS3: 2.5
nvd
около 2 месяцев назад

Observable Timing Discrepancy vulnerability in Apache Shiro. This issue affects Apache Shiro: from 1.*, 2.* before 2.0.7. Users are recommended to upgrade to version 2.0.7 or later, which fixes the issue. Prior to Shiro 2.0.7, code paths for non-existent vs. existing users are different enough, that a brute-force attack may be able to tell, by timing the requests only, determine if the request failed because of a non-existent user vs. wrong password. The most likely attack vector is a local attack only. Shiro security model  https://shiro.apache.org/security-model.html#username_enumeration  discusses this as well. Typically, brute force attack can be mitigated at the infrastructure level.

CVSS3: 2.5
debian
около 2 месяцев назад

Observable Timing Discrepancy vulnerability in Apache Shiro. This iss ...

github
около 2 месяцев назад

Apache Shiro Affected by an Observable Timing Discrepancy Vulnerability

EPSS

Процентиль: 1%
0.00009
Низкий

2.9 Low

CVSS3