cvedb.io
CVE-2026-23903
MEDIUM · CVSS 5.3
EPSS exploitation probability: 0%
Published 2026-02-09T10:15:57.520 · Last modified 2026-06-17T10:22:17.217

Summary

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 2.0.7 and later has a new parameters to remediate this issue shiro.ini: filterChainResolver.caseInsensitive = true application.propertie: shiro.caseInsensitive=true Shiro 3.0.0 and later (upcoming) makes this the default.

Affected products

apache — shiro

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.