{"id":"CVE-2026-77167","revision":"07ace91b310f47858e24c5034b709645","records":[{"revision":"07ace91b310f47858e24c5034b709645","observedAt":"2026-10-27T17:43:43.295+00:00","statement":{"source":"cve-program","id":"CVE-2026-77167","aliases":[],"title":"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 fol…","description":"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.","state":0,"publishedAt":"2026-10-27T16:15:34.778+00:00","modifiedAt":"2026-10-27T16:15:34.778+00:00","affected":[{"ecosystem":"Vendor product","name":"server","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unaffected\",\n                    \"vendor\": \"Nextcloud\",\n                    \"product\": \"server\",\n                    \"versions\": [\n                        {\n                            \"version\": \"22.0.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"34.0.0\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://hackerone.com/reports/3679640"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-77167","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-77167","identifiers":["CVE-2026-77167"]},"retained":false,"historicalAffected":[]}],"coverage":[]}