{"id":"CVE-2026-45154","summary":"Nextcloud: Improper Access Control in Collectives","details":"Nextcloud is an open source content collaboration platform. From version 2.6.0 to before version 4.3.0, when a previous collective pages was deleted and the collective was shared view-only, guests with access to the collective were able to access the deleted pages directly from the trashbin. This issue has been patched in version 4.3.0.","aliases":["GHSA-8mpv-ggq8-hf3w"],"modified":"2026-08-04T11:48:47.866320891Z","published":"2026-06-01T16:37:41.710Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45154.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-284"]},"references":[{"type":"WEB","url":"https://hackerone.com/reports/3521434"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45154.json"},{"type":"ADVISORY","url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8mpv-ggq8-hf3w"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45154"},{"type":"FIX","url":"https://github.com/nextcloud/collectives/pull/2432"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nextcloud/collectives","events":[{"introduced":"6402cd6e2a075ec827aa13ae1814a5e2d28a6ff5"},{"fixed":"93982e26107c44d502ad5d9274a77f7c6da5ba27"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"2.6.0"},{"fixed":"4.3.0"}]}}],"versions":["v3.6.1","v3.4.0","v2.18.0","v4.2.0","v4.1.0","v4.0.0","v3.6.0","v3.5.0","v3.3.0","v3.2.4","v3.2.3","v3.2.2","v3.2.1","v3.2.0","v3.1.2","v3.1.1","v3.1.0","v3.0.3","v3.0.2","v3.0.1","v3.0.0","v3.0.0-dev2","v3.0.0-dev","v2.17.1","v2.17.0","v2.16.3","v2.16.2","v2.16.1","v2.16.0","v2.15.2","v2.15.1","v2.15.0","v2.14.4","v2.14.3","v2.14.2","v2.14.1","v2.14.0","v2.13.0","v2.12.0","v2.11.0","v2.10.1","v2.10.0","v2.9.2","v2.9.1","v2.9.0","v2.8.2","v2.8.1","v2.8.0","v2.7.1","v2.7.0","v2.6.1","v2.6.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45154.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N"}]}