{"id":"CVE-2026-45275","summary":"Nextcloud: Authorization bypass in approval feature allows unauthorized file sharing with approvers","details":"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.","aliases":["GHSA-v8q8-w6c3-3gv9"],"modified":"2026-07-24T03:56:54.926568866Z","published":"2026-06-01T16:51:22.429Z","database_specific":{"cwe_ids":["CWE-285"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45275.json","cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://hackerone.com/reports/3593780"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45275.json"},{"type":"ADVISORY","url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-v8q8-w6c3-3gv9"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45275"},{"type":"FIX","url":"https://github.com/nextcloud/approval/pull/392"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nextcloud/approval","events":[{"introduced":"0"},{"fixed":"1f41f41748dadf28b0da388110ee9da30b1dbf7b"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"2.7.2"}],"source":["AFFECTED_FIELD","CPE_RANGE"],"cpe":"cpe:2.3:a:nextcloud:approval:*:*:*:*:*:nextcloud:*:*"}}],"versions":["v2.7.1","v2.7.0","v2.6.0","v2.5.0","v2.4.0","v2.3.0","v2.2.0","v2.1.0","v2.0.0","v1.3.0","v1.1.1","v1.2.0","v1.1.0","v1.0.14","v1.0.13","v1.0.12","v1.0.11","v1.0.10","v1.0.10-3-nightly","v1.0.10-2-nightly","v1.0.9","v1.0.8","v1.0.8-1-nightly","v1.0.7","v1.0.7-4-nightly","v1.0.7-3-nightly","v1.0.7-2-nightly","v1.0.7-1-nightly","v1.0.6","v1.0.5-6-nightly","v1.0.5-5-nightly","v1.0.5-4-nightly","v1.0.5-3-nightly","v1.0.5-2-nightly","v1.0.5-1-nightly","v1.0.4","v1.0.4-1-nightly","v1.0.3","v1.0.2","v1.0.1","v1.0.0","v0.0.9","v0.0.8","v0.0.7","v0.0.6","v0.0.4-2-nightly","v0.0.4-1-nightly","v0.0.3-5-nightly","v0.0.3-4-nightly","v0.0.3-3-nightly","v0.0.3-2-nightly"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45275.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}