{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-06T19:49:55.558","vulnerabilities":[{"cve":{"id":"CVE-2026-23901","sourceIdentifier":"security@apache.org","published":"2026-02-10T10:15:59.240","lastModified":"2026-02-12T15:30:25.543","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"Observable Timing Discrepancy vulnerability in Apache Shiro.\n\nThis issue affects Apache Shiro: from 1.*, 2.* before 2.0.7.\n\nUsers are recommended to upgrade to version 2.0.7 or later, which fixes the issue.\n\nPrior to Shiro 2.0.7, code paths for non-existent vs. existing users are different enough,\nthat a brute-force attack may be able to tell, by timing the requests only, determine if\nthe request failed because of a non-existent user vs. wrong password.\n\nThe most likely attack vector is a local attack only.\nShiro security model  https://shiro.apache.org/security-model.html#username_enumeration  discusses this as well.\n\nTypically, brute force attack can be mitigated at the infrastructure level."},{"lang":"es","value":"Vulnerabilidad de discrepancia de tiempo observable en Apache Shiro.\n\nEste problema afecta a Apache Shiro: desde 1.*, 2.* antes de 2.0.7.\n\nSe recomienda a los usuarios actualizar a la versión 2.0.7 o posterior, que soluciona el problema.\n\nAntes de Shiro 2.0.7, las rutas de código para usuarios inexistentes frente a usuarios existentes son lo suficientemente diferentes como para que un ataque de fuerza bruta pueda discernir, solo cronometrando las solicitudes, si la solicitud falló debido a un usuario inexistente frente a una contraseña incorrecta.\n\nEl vector de ataque más probable es solo un ataque local.\nEl modelo de seguridad de Shiro https://shiro.apache.org/security-model.html#username_enumeration también aborda esto.\n\nTípicamente, el ataque de fuerza bruta puede mitigarse a nivel de infraestructura."}],"metrics":{"cvssMetricV40":[{"source":"security@apache.org","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:A/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:A/V:C/RE:L/U:Green","baseScore":1.0,"baseSeverity":"LOW","attackVector":"LOCAL","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"ACTIVE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NEGLIGIBLE","Automatable":"YES","Recovery":"AUTOMATIC","valueDensity":"CONCENTRATED","vulnerabilityResponseEffort":"LOW","providerUrgency":"GREEN"}}],"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","baseScore":2.5,"baseSeverity":"LOW","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":1.0,"impactScore":1.4}]},"weaknesses":[{"source":"security@apache.org","type":"Secondary","description":[{"lang":"en","value":"CWE-208"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:apache:shiro:*:*:*:*:*:*:*:*","versionEndExcluding":"2.0.7","matchCriteriaId":"9E1B2B45-F100-4693-9F70-FE8D342853A3"}]}]}],"references":[{"url":"https://lists.apache.org/thread/mm1jct9b86jvnh3y44tj22xvjtx3xhhh","source":"security@apache.org","tags":["Issue Tracking","Third Party Advisory","Mailing List"]},{"url":"http://www.openwall.com/lists/oss-security/2026/02/08/2","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"]}]}}]}