CVE-2026-27099

{"id": "CVE-2026-27099", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.0, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.1}]}, "published": "2026-02-18T15:18:43.857", "references": [{"url": "https://www.jenkins.io/security/advisory/2026-02-18/#SECURITY-3669", "tags": ["Vendor Advisory"], "source": "jenkinsci-cert@googlegroups.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "Jenkins 2.483 through 2.550 (both inclusive), LTS 2.492.1 through 2.541.1 (both inclusive) does not escape the user-provided description of the \"Mark temporarily offline\" offline cause, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Agent/Configure or Agent/Disconnect permission."}, {"lang": "es", "value": "Jenkins 2.483 a 2.550 (ambos inclusive), LTS 2.492.1 a 2.541.1 (ambos inclusive) no escapa la descripci\u00f3n proporcionada por el usuario de la causa de desconexi\u00f3n 'Marcar temporalmente sin conexi\u00f3n', lo que resulta en una vulnerabilidad de cross-site scripting (XSS) almacenado explotable por atacantes con permiso de Agente/Configurar o Agente/Desconectar."}], "lastModified": "2026-02-20T20:52:03.000", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "C99A3253-487D-4313-932F-2BCA7F24ED83", "versionEndExcluding": "2.551", "versionStartIncluding": "2.483"}, {"criteria": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "D5D2394C-A869-41E7-96E5-F31CEC56765D", "versionEndExcluding": "2.541.2", "versionStartIncluding": "2.492.1"}], "operator": "OR"}]}], "sourceIdentifier": "jenkinsci-cert@googlegroups.com"}