CVE Watch20 ago 2026

CVE-2026-23903

Authentication Bypass by Alternate Name vulnerability in Apache Shiro. This issue affects Apache Shiro: before 2.0.7. Users are recommende

CVSS

5.3

Medio

EPSS

0.4%

p29

KEV

—

Exploit Today

0-100

Publicado: 9 feb 2026 · Última mod.: 20 ago 2026 · CWE-289

EPSS · 30d

0.3%EPSS · 30 días0.4%

2026-08-202026-09-17

Descripción técnica

Authentication Bypass by Alternate Name vulnerability in Apache Shiro. This issue affects Apache Shiro: before 2.0.7. Users are recommended to upgrade to version 2.0.7, which fixes the issue. The issue only effects static files. If static files are served from a case-insensitive filesystem, such as default macOS setup, static files may be accessed by varying the case of the filename in the request. If only lower-case (common default) filters are present in Shiro, they may be bypassed this way. Shiro 2.1.0 and later has a new parameters to remediate this issue shiro.ini: filterChainResolver.caseInsensitive = true application.properties: shiro.caseInsensitive=true Shiro 3.0.0 and later makes this the default in shiro.ini-based configurations. Shiro 3.0.1 and later makes this the default in all configurations, including programmatic and Spring / Spring Boot.

Referencias oficiales

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