{"id":"CVE-2026-45154","state":"PUBLISHED","title":"Nextcloud: Improper Access Control in Collectives","description":"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.","publishedAt":"2026-06-01T16:37:41.710Z","updatedAt":"2026-06-01T17:40:50.457Z","severity":{"score":2.6,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["nextcloud security-advisories"],"affected":[{"vendor":"nextcloud","product":"security-advisories","versions":[{"version":">= 2.6.0, < 4.3.0","status":"affected"}]}],"references":["https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8mpv-ggq8-hf3w","https://github.com/nextcloud/collectives/pull/2432","https://hackerone.com/reports/3521434"],"weaknesses":["CWE-284"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/45xxx/CVE-2026-45154.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45154","state":"PUBLISHED","datePublished":"2026-06-01T16:37:41.710Z","dateUpdated":"2026-06-01T17:40:50.457Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-08T20:44:38.964Z"},"containers":{"cna":{"title":"Nextcloud: Improper Access Control in Collectives","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"nextcloud","product":"security-advisories","versions":[{"version":">= 2.6.0, < 4.3.0","status":"affected"}]}],"references":[{"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8mpv-ggq8-hf3w","name":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8mpv-ggq8-hf3w","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/nextcloud/collectives/pull/2432","name":"https://github.com/nextcloud/collectives/pull/2432","tags":["x_refsource_MISC"]},{"url":"https://hackerone.com/reports/3521434","name":"https://hackerone.com/reports/3521434","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":2.6,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-284","lang":"en","description":"CWE-284: Improper Access Control","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-06-01T16:37:41.710Z"},"source":{"advisory":"GHSA-8mpv-ggq8-hf3w","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-01T17:40:40.788059Z","id":"CVE-2026-45154","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-01T17:40:50.457Z"}}]}}}