CVE-2026-45275

{"id": "CVE-2026-45275", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2026-06-01T19:16:49.517", "references": [{"url": "https://github.com/nextcloud/approval/pull/392", "tags": ["Issue Tracking", "Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-v8q8-w6c3-3gv9", "tags": ["Mitigation", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://hackerone.com/reports/3593780", "tags": ["Permissions Required"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-285"}]}], "descriptions": [{"lang": "en", "value": "Nextcloud is an open source content collaboration platform. Prior to version 2.7.2, a privilege escalation vulnerability exists in the Approval app that allows a user without sharing permissions to force the system to share a file with approvers. This results in an authorization bypass and privilege escalation, allowing unauthorized distribution of restricted files. This issue has been patched in version 2.7.2."}], "lastModified": "2026-06-03T17:39:44.920", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:nextcloud:approval:*:*:*:*:*:nextcloud:*:*", "vulnerable": true, "matchCriteriaId": "571B6557-A744-42A4-B00C-59172782ADA1", "versionEndExcluding": "2.7.2"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}