CVE-2026-34579

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{"affected": [{"affectedData": [{"product": "mantisbt", "vendor": "mantisbt", "versions": [{"status": "affected", "version": "< 2.28.2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.28.1 and prior are vulnerable to Authorization Bypass through the private issue monitoring feature . Using a crafted POST request to bug_monitor_add.php, a user with project-level access can add themselves as a monitor for a private issue they do not have access to. Despite displaying an Access Denied error, the application accepts the request and creates a monitor relationship for the private issue. Direct access to the private issue remains blocked, but the user will receive email notifications for updates, leading to disclosure of the private issue's metadata and content. This issue has been fixed in version 2.28.2."}, {"lang": "es", "value": "Mantis Bug Tracker (MantisBT) es un sistema de seguimiento de incidencias de c\u00f3digo abierto. Las versiones 2.28.1 y anteriores son vulnerables a la Elusi\u00f3n de autorizaci\u00f3n a trav\u00e9s de la caracter\u00edstica de monitoreo de incidencias privadas. Utilizando una solicitud POST manipulada a bug_monitor_add.php, un usuario con acceso a nivel de proyecto puede a\u00f1adirse a s\u00ed mismo como monitor para una incidencia privada a la que no tiene acceso. A pesar de mostrar un error de 'Acceso Denegado', la aplicaci\u00f3n acepta la solicitud y crea una relaci\u00f3n de monitoreo para la incidencia privada. El acceso directo a la incidencia privada permanece bloqueado, pero el usuario recibir\u00e1 notificaciones por correo electr\u00f3nico sobre las actualizaciones, lo que lleva a la divulgaci\u00f3n de los metadatos y el contenido de la incidencia privada. Este problema ha sido corregido en la versi\u00f3n 2.28.2."}], "id": "CVE-2026-34579", "lastModified": "2026-07-24T09:10:00.153", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/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:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-34579", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-20T14:25:53.765282Z", "version": "2.0.3"}}]}, "published": "2026-05-19T23:16:57.137", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/mantisbt/mantisbt/commit/0a93267deba445fb9d15250c16e6fdb1246ffa65"}, {"source": "security-advisories@github.com", "url": "https://github.com/mantisbt/mantisbt/security/advisories/GHSA-ggw7-9675-6v4v"}, {"source": "security-advisories@github.com", "url": "https://mantisbt.org/bugs/view.php?id=36975"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}, {"lang": "en", "value": "CWE-863"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.28.2)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "mantisbt", "source": "cna", "vendor": "mantisbt"}, "product": "mantisbt", "vendor": "mantisbt"}], "created": "2026-05-19T23:30:05.641536+00:00", "updated": "2026-05-19T23:30:05.951605+00:00", "vendors": ["mantisbt", "mantisbt$PRODUCT$mantisbt"]}