{"schema":"threatline.record/2","record":{"id":"CVE-2026-110214","aliases":[],"summary":"Snowy 3.6.5 Hard-coded Download Signature Key Allows Unauthenticated File Download","details":"Snowy 3.6.5 contains a hard-coded HMAC key vulnerability that allows unauthenticated attackers to forge download signatures for the /dev/file/download endpoint by using the published FILE_DOWNLOAD_SIGN_SECRET constant. Attackers can compute HMAC-SHA256 signatures of guessed file ids offline to download stored files such as avatars, editor images and attachments.","categories":["Unclassified"],"product":"Snowy","vendor":"xiaonuobase","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-110214","source_modified_at":"2026-10-13T19:23:28.663Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Snowy","vendor":"xiaonuobase","versions":[{"version":"3.6.5","lessThanOrEqual":"3.6.5","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":6.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00456,"percentile":0.38619,"score_date":"2026-10-23"},"published_at":"2026-10-13T18:50:03.179Z","modified_at":"2026-10-13T19:23:28.663Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-110214","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-13T19:23:28.663Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-110214","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/@1ExmmukzRMWN7B4gQ4W-4Q/snowy-dev-file-access-control","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/xiaonuobase/Snowy/blob/v3.6.5/snowy-plugin/snowy-plugin-dev/src/main/java/vip/xiaonuo/dev/modular/file/service/impl/DevFileServiceImpl.java#L419-L445","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/xiaonuobase/Snowy/blob/v3.6.5/snowy-plugin/snowy-plugin-dev/src/main/java/vip/xiaonuo/dev/modular/file/service/impl/DevFileServiceImpl.java#L78","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/xiaonuobase/Snowy/blob/v3.6.5/snowy-web-app/src/main/java/vip/xiaonuo/core/config/GlobalConfigure.java#L174-L175","tags":["technical-description"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/snowy-3.6.5-hard-coded-download-signature-key-allows-unauthenticated-file-download","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":"no","technical_impact":"partial","assessed_at":"2026-10-13T19:23:04.714455Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-13T19:23:28.663Z","content_hash":"413981214c838d8854ece28944eea2697ab8d6189f7b1906019b2a0b73cfa636"}}