{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45154","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-05-08T20:44:38.964Z","datePublished":"2026-06-01T16:37:41.710Z","dateUpdated":"2026-06-01T17:40:50.457Z"},"containers":{"cna":{"title":"Nextcloud: Improper Access Control in Collectives","problemTypes":[{"descriptions":[{"cweId":"CWE-284","lang":"en","description":"CWE-284: Improper Access Control","type":"CWE"}]}],"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"}}],"references":[{"name":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8mpv-ggq8-hf3w","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8mpv-ggq8-hf3w"},{"name":"https://github.com/nextcloud/collectives/pull/2432","tags":["x_refsource_MISC"],"url":"https://github.com/nextcloud/collectives/pull/2432"},{"name":"https://hackerone.com/reports/3521434","tags":["x_refsource_MISC"],"url":"https://hackerone.com/reports/3521434"}],"affected":[{"vendor":"nextcloud","product":"security-advisories","versions":[{"version":">= 2.6.0, < 4.3.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-06-01T16:37:41.710Z"},"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."}],"source":{"advisory":"GHSA-8mpv-ggq8-hf3w","discovery":"UNKNOWN"}},"adp":[{"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"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-06-01T17:40:50.457Z"}}]}}