{"schema":"threatline.record/2","record":{"id":"CVE-2026-111643","aliases":[],"summary":"Misaka Danmu Server through 2.8.9 Authentication Bypass via Config-History Rollback","details":"Misaka Danmu Server through 2.8.9 contains an authentication bypass vulnerability that allows unauthenticated attackers to write arbitrary configuration keys via the unprotected POST /api/ui/config-history/rollback endpoint. Attackers can set the ipWhitelist key to their own /32 address, or alter trustedProxies and webhookApiKey, to access every protected endpoint as the administrator.","categories":["Unclassified"],"product":"misaka_danmu_server","vendor":"l429609201","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111643","source_modified_at":"2026-10-23T16:08:12.073Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"misaka_danmu_server","vendor":"l429609201","versions":[{"version":"0","lessThanOrEqual":"2.8.9","status":"affected","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":9.3,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00445,"percentile":0.3772,"score_date":"2026-10-23"},"published_at":"2026-10-16T17:39:13.043Z","modified_at":"2026-10-23T16:08:12.073Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-111643","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T16:08:12.073Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-111643","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://hackmd.io/@hieuPenguinnn/misaka-danmu-server-ui-api-missing-authentication","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/l429609201/misaka_danmu_server/blob/v2.8.9/src/api/ui/config_history.py#L51-L66","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/l429609201/misaka_danmu_server/blob/v2.8.9/src/security.py#L136-L182","tags":["technical-description"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/misaka-danmu-server-through-2.8.9-authentication-bypass-via-config-history-rollback","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"yes","technical_impact":"total","assessed_at":"2026-10-23T16:07:59.793729Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-23T16:08:12.073Z","content_hash":"17b65ae6f44c7a8e41fb31662ab93f427f41044afe8c2a0198f97b59d0ccd01c"}}