CVE-2026-23903

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23903", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-01-19T01:14:40.103Z", "datePublished": "2026-02-09T09:26:21.772Z", "dateUpdated": "2026-11-10T09:50:30.969Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-11-10T09:50:30.969Z"}, "title": "Apache Shiro: Auth bypass when accessing static files only on case-insensitive filesystems", "problemTypes": [{"descriptions": [{"description": "CWE-289 Authentication Bypass by Alternate Name", "lang": "en", "cweId": "CWE-289", "type": "CWE"}]}], "source": {"discovery": "EXTERNAL"}, "affected": [{"vendor": "Apache Software Foundation", "product": "Apache Shiro", "collectionURL": "https://repo.maven.apache.org/maven2", "packageName": "org.apache.shiro:shiro-web", "versions": [{"status": "affected", "version": "0", "lessThan": "2.0.7", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"value": "Authentication Bypass by Alternate Name vulnerability in Apache Shiro.\n\nThis issue affects Apache Shiro: before 2.0.7.\n\nUsers are recommended to upgrade to version 2.0.7, which fixes the issue.\n\nThe issue only effects static files. If static files are served from a case-insensitive filesystem,\nsuch as default macOS setup, static files may be accessed by varying the case of the filename in the request.\nIf only lower-case (common default) filters are present in Shiro, they may be bypassed this way.\n\nShiro 2.1.0 and later has a new parameters to remediate this issue\nshiro.ini: filterChainResolver.caseInsensitive = true\napplication.properties: shiro.caseInsensitive=true\n\nShiro 3.0.0 and later makes this the default in\u00a0shiro.ini-based configurations.\nShiro 3.0.1 and later makes this the default in all configurations, including programmatic and Spring / Spring Boot.", "lang": "en", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Authentication Bypass by Alternate Name vulnerability in Apache Shiro.</p><p>This issue affects Apache Shiro: before 2.0.7.</p><p>Users are recommended to upgrade to version 2.0.7, which fixes the issue.</p>The issue only effects static files. If static files are served from a case-insensitive filesystem,<br>such as default macOS setup, static files may be accessed by varying the case of the filename in the request.<br>If only lower-case (common default) filters are present in Shiro, they may be bypassed this way.<br><br>Shiro 2.1.0 and later has a new parameters to remediate this issue<br>shiro.ini: <span style=\"background-color: rgba(129, 139, 152, 0.12);\">filterChainResolver.caseInsensitive = true<br></span>application.properties: shiro<span style=\"background-color: rgba(129, 139, 152, 0.12);\">.caseInsensitive=true<br></span><br>Shiro 3.0.0 and later makes this the default in&nbsp;<tt>shiro.ini</tt>-based configurations.<br>Shiro 3.0.1 and later makes this the default in all configurations, including programmatic and Spring / Spring Boot."}]}], "references": [{"url": "https://lists.apache.org/thread/5jjf0hnjcol58z2m5y255c7scz1lnp8k", "tags": ["vendor-advisory"]}], "metrics": [{"other": {"type": "Textual description of severity", "content": {"text": "low"}}}], "credits": [{"lang": "en", "value": "Jesse Yang", "type": "finder"}, {"lang": "en", "value": "Lenny Pimak", "type": "remediation developer"}], "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/02/08/1"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-02-09T10:25:43.212Z"}}, {"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-02-09T16:17:20.608697Z", "id": "CVE-2026-23903", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-09T16:17:43.204Z"}}]}}

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{"affected": [{"affectedData": [{"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"}]}], "source": "security@apache.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:apache:shiro:*:*:*:*:*:*:*:*", "matchCriteriaId": "9E1B2B45-F100-4693-9F70-FE8D342853A3", "versionEndExcluding": "2.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Authentication Bypass by Alternate Name vulnerability in Apache Shiro.\n\nThis issue affects Apache Shiro: before 2.0.7.\n\nUsers are recommended to upgrade to version 2.0.7, which fixes the issue.\n\nThe issue only effects static files. If static files are served from a case-insensitive filesystem,\nsuch as default macOS setup, static files may be accessed by varying the case of the filename in the request.\nIf only lower-case (common default) filters are present in Shiro, they may be bypassed this way.\n\nShiro 2.1.0 and later has a new parameters to remediate this issue\nshiro.ini: filterChainResolver.caseInsensitive = true\napplication.properties: shiro.caseInsensitive=true\n\nShiro 3.0.0 and later makes this the default in\u00a0shiro.ini-based configurations.\nShiro 3.0.1 and later makes this the default in all configurations, including programmatic and Spring / Spring Boot."}, {"lang": "es", "value": "Vulnerabilidad de omisi\u00f3n de autenticaci\u00f3n por nombre alternativo en Apache Shiro.\n\nEste problema afecta a Apache Shiro: antes de la versi\u00f3n 2.0.7.\n\nSe recomienda a los usuarios actualizar a la versi\u00f3n 2.0.7, que soluciona el problema.\n\nEl problema solo afecta a los archivos est\u00e1ticos. Si los archivos est\u00e1ticos se sirven desde un sistema de archivos que no distingue entre may\u00fasculas y min\u00fasculas, como la configuraci\u00f3n predeterminada de macOS, se puede acceder a los archivos est\u00e1ticos variando el uso de may\u00fasculas y min\u00fasculas del nombre de archivo en la solicitud. Si solo hay filtros en min\u00fasculas (valor predeterminado com\u00fan) en Shiro, pueden ser omitidos de esta manera.\n\nShiro 2.0.7 y versiones posteriores tienen nuevos par\u00e1metros para solucionar este problema\nshiro.ini: filterChainResolver.caseInsensitive = true\napplication.propertie: shiro.caseInsensitive=true\n\nShiro 3.0.0 y versiones posteriores (pr\u00f3ximas) lo convierten en el valor predeterminado."}], "id": "CVE-2026-23903", "lastModified": "2026-08-20T10:16:41.287", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-23903", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-02-09T16:17:20.608697Z", "version": "2.0.3"}}]}, "published": "2026-02-09T10:15:57.520", "references": [{"source": "security@apache.org", "tags": ["Mailing List", "Vendor Advisory"], "url": "https://lists.apache.org/thread/5jjf0hnjcol58z2m5y255c7scz1lnp8k"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2026/02/08/1"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-289"}], "source": "security@apache.org", "type": "Secondary"}]}

{"bugzilla": {"description": "org.apache.shiro/shiro-web: Apache Shiro: Auth bypass when accessing static files only on case-insensitive filesystems", "id": "2437850", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2437850"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "status": "draft"}, "cwe": "CWE-289", "details": ["No description is available for this CVE."], "mitigation": {"lang": "en:us", "value": "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."}, "name": "CVE-2026-23903", "package_state": [{"cpe": "cpe:/a:redhat:camel_spring_boot:4", "fix_state": "Fix deferred", "package_name": "shiro-web", "product_name": "Red Hat build of Apache Camel for Spring Boot 4"}, {"cpe": "cpe:/a:redhat:jboss_fuse:7", "fix_state": "Fix deferred", "package_name": "shiro-web", "product_name": "Red Hat Fuse 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Fix deferred", "package_name": "shiro-web", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Fix deferred", "package_name": "shiro-web", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}], "public_date": "2026-02-09T09:26:21Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-23903\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-23903\nhttp://www.openwall.com/lists/oss-security/2026/02/08/1\nhttps://lists.apache.org/thread/5jjf0hnjcol58z2m5y255c7scz1lnp8k"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.0.7)"}}], "product": "shiro", "vendor": "apache"}], "created": "2026-02-10T12:23:44.729943+00:00", "updated": "2026-08-22T11:30:17.167788+00:00", "vendors": ["apache", "apache$PRODUCT$shiro"]}