CVE-2026-23903
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.apache.shiro:shiro-springMaven | < 2.1.0 | 2.1.0 |
Affected products
5- Apache Software Foundation/Apache Shirov5Range: 0
- ghsa-coords3 versionspkg:maven/org.apache.shiro/shiro-springpkg:apk/chainguard/apache-activemq-6.1pkg:apk/chainguard/apache-activemq-fips-6.1
< 2.1.0+ 2 more
- (no CPE)range: < 2.1.0
- (no CPE)range: < 6.1.8-r5
- (no CPE)range: < 6.1.8-r7
Patches
Vulnerability mechanics
References
5- www.openwall.com/lists/oss-security/2026/02/08/1nvdMailing ListThird Party AdvisoryWEB
- github.com/advisories/GHSA-c244-p6m5-vqj6ghsaADVISORY
- lists.apache.org/thread/5jjf0hnjcol58z2m5y255c7scz1lnp8knvdMailing ListVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-23903ghsaADVISORY
- github.com/apache/shiro/commit/3b9638b957495004599aeaf24ba8949e309f26e8ghsaWEB
News mentions
0No linked articles in our index yet.