CVE Explorer
CVE-2026-23903
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
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"collectionURL":"https://repo.maven.apache.org/maven2","defaultStatus":"unaffected","packageName":"org.apache.shiro:shiro-web","product":"Apache Shiro","vendor":"Apache Software Foundation","versions":[{"lessThan":"2.0.7","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:b59db2b40a2f340ffb0ae33f1ca3b44c7b06aac024da95ce42b33f23fc19d750 · sha256:f6f6fd1e565857ed… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:b59db2b40a2f340ffb0ae33f1ca3b44c7b06aac024da95ce42b33f23fc19d750 · sha256:f6f6fd1e565857ed… · /containers/adp/1/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-289","description":"CWE-289 Authentication Bypass by Alternate Name","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:b59db2b40a2f340ffb0ae33f1ca3b44c7b06aac024da95ce42b33f23fc19d750 · sha256:f6f6fd1e565857ed… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"url":"http://www.openwall.com/lists/oss-security/2026/02/08/1"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b59db2b40a2f340ffb0ae33f1ca3b44c7b06aac024da95ce42b33f23fc19d750 · sha256:f6f6fd1e565857ed… · /containers/adp/0/references/0
{"tags":["vendor-advisory"],"url":"https://lists.apache.org/thread/5jjf0hnjcol58z2m5y255c7scz1lnp8k"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b59db2b40a2f340ffb0ae33f1ca3b44c7b06aac024da95ce42b33f23fc19d750 · sha256:f6f6fd1e565857ed… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.