{"schema":"threatline.record/2","record":{"id":"CVE-2026-77167","aliases":[],"summary":"Abusing the federated share endpoint, an attacker can write arbitrary rows into the oc_share_external database table. These rows persist indefinitely — there is no automatic cleanup mechanism. Three d","details":"Abusing the federated share endpoint, an attacker can write arbitrary rows into the oc_share_external database table. These rows persist indefinitely — there is no automatic cleanup mechanism. Three distinct denial-of-service conditions follow from this write primitive, all triggered from the same unauthenticated source and all self-renewing on a 24-hour cycle for as long as the injected rows remain in the database.","categories":["Applications & CMS"],"product":"server","vendor":"Nextcloud","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-77167","source_modified_at":"2026-10-27T16:15:34.778Z","fetched_at":"2026-10-27T16:27:21.584480Z","product":"server","vendor":"Nextcloud","versions":[{"version":"22.0.0","status":"affected","lessThanOrEqual":"34.0.0","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":7.5,"severity":"High","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-27T16:15:34.778Z","modified_at":"2026-10-27T16:15:34.778Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-77167","fetched_at":"2026-10-27T16:27:21.584480Z","source_modified_at":"2026-10-27T16:15:34.778Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://hackerone.com/reports/3679640"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"vendor and product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-27T16:15:34.778Z","content_hash":"3b2f2dd47415acb2ec72ccb286648436219a0360fc5ccba30433d35695d1779d"}}