CVE-2026-25963

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{"affected": [{"affectedData": [{"product": "fleet", "vendor": "fleetdm", "versions": [{"status": "affected", "version": "< 4.80.1"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:fleetdm:fleet:*:*:*:*:*:*:*:*", "matchCriteriaId": "A1490125-39FE-4B90-AC5F-62B26ED3C509", "versionEndExcluding": "4.80.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Fleet is open source device management software. In versions prior to 4.80.1, a broken authorization check in Fleet\u2019s certificate template deletion API could allow a team administrator to delete certificate templates belonging to other teams within the same Fleet instance. Fleet supports certificate templates that are scoped to individual teams. In affected versions, the batch deletion endpoint validated authorization using a user-supplied team identifier but did not verify that the certificate template IDs being deleted actually belonged to that team. As a result, a team administrator could delete certificate templates associated with other teams, potentially disrupting certificate-based workflows such as device enrollment, Wi-Fi authentication, VPN access, or other certificate-dependent configurations for the affected teams. This issue does not allow privilege escalation, access to sensitive data, or compromise of Fleet\u2019s control plane. Impact is limited to integrity and availability of certificate templates across teams. Version 4.80.1 patches the issue. If an immediate upgrade is not possible, administrators should restrict access to certificate template management to trusted users and avoid delegating team administrator permissions where not strictly required."}, {"lang": "es", "value": "Fleet es un software de gesti\u00f3n de dispositivos de c\u00f3digo abierto. En versiones anteriores a la 4.80.1, una verificaci\u00f3n de autorizaci\u00f3n defectuosa en la API de eliminaci\u00f3n de plantillas de certificados de Fleet podr\u00eda permitir a un administrador de equipo eliminar plantillas de certificados pertenecientes a otros equipos dentro de la misma instancia de Fleet. Fleet admite plantillas de certificados con \u00e1mbito para equipos individuales. En las versiones afectadas, el endpoint de eliminaci\u00f3n por lotes validaba la autorizaci\u00f3n utilizando un identificador de equipo proporcionado por el usuario, pero no verificaba que los ID de las plantillas de certificados que se estaban eliminando realmente pertenecieran a ese equipo. Como resultado, un administrador de equipo podr\u00eda eliminar plantillas de certificados asociadas con otros equipos, interrumpiendo potencialmente flujos de trabajo basados en certificados como la inscripci\u00f3n de dispositivos, la autenticaci\u00f3n Wi-Fi, el acceso VPN u otras configuraciones dependientes de certificados para los equipos afectados. Este problema no permite la escalada de privilegios, el acceso a datos sensibles o el compromiso del plano de control de Fleet. El impacto se limita a la integridad y disponibilidad de las plantillas de certificados entre equipos. La versi\u00f3n 4.80.1 corrige el problema. Si una actualizaci\u00f3n inmediata no es posible, los administradores deben restringir el acceso a la gesti\u00f3n de plantillas de certificados a usuarios de confianza y evitar delegar permisos de administrador de equipo donde no sean estrictamente necesarios."}], "id": "CVE-2026-25963", "lastModified": "2026-06-17T10:25:30.157", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 1.2, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "UNREPORTED", "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": "HIGH", "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:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/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": "NONE", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-25963", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-02-26T14:26:58.329076Z", "version": "2.0.3"}}]}, "published": "2026-02-26T03:16:04.350", "references": [{"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://github.com/fleetdm/fleet/security/advisories/GHSA-5jvp-m9h4-253h"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.80.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "fleet", "source": "cna", "vendor": "fleetdm"}, "product": "fleet", "vendor": "fleetdm"}], "analysis": {"en": {"generated_at": "2026-04-17T14:26:15.402257+00:00", "value": {"mitigation_remediation": ["Upgrade Fleet to version 4.80.1 or later to apply the official fix.", "If an immediate upgrade is not possible, restrict certificate template management to trusted administrators and avoid delegating team\u2011administrator permissions where not strictly required.", "Configure the system to enforce ownership checks on template deletion or disable the batch\u2011deletion endpoint until the ownership validation is corrected."], "summary": {"action": "Apply patch", "impact": "Unauthorized deletion of certificate templates across teams"}, "threat_synthesis": {"affected_systems": "The vulnerability affected all Fleet installations running a version older than 4.80.1. The affected product is the Fleet application provided by fleetdm. Version 4.80.1 or later contains the fix.", "description_and_impact": "Fleet, an open\u2011source device\u2011management platform, contained a broken authorization check in its certificate\u2011template deletion API. The check validated a user\u2011supplied team identifier but did not verify that the template IDs to be deleted actually belonged to that team. As a result, a team administrator could delete certificate templates owned by other teams within the same Fleet instance. This loss of integrity could disrupt certificate\u2011based workflows such as device enrollment, Wi\u2011Fi or VPN authentication, resulting in downtime or forced re\u2011enrollment for affected teams.", "risk_and_exploitability": "The CVSS score of 1.2 reflects the low severity, and the EPSS score of <1% indicates a very low probability of exploitation. The vulnerability does not provide privilege escalation or data theft; the attacker must already have team\u2011administrator rights and exploit the batch\u2011deletion endpoint. Since the attack vector is through the internal API, the risk to the broader Fleet infrastructure is limited to integrity and availability of certificate templates, and it is not listed in the CISA Known\u2011Exploited Vulnerabilities catalog."}}}}, "created": "2026-02-26T13:09:42.904244+00:00", "updated": "2026-04-17T14:30:20.828469+00:00", "vendors": ["fleetdm", "fleetdm$PRODUCT$fleet"]}