{"id":"CVE-2026-110214","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.","modified":"2026-10-15T02:47:30.375286600Z","published":"2026-10-13T18:50:03.179Z","database_specific":{"cwe_ids":["CWE-321"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110214.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110214.json"},{"type":"ADVISORY","url":"https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/snowy-dev-file-access-control"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-110214"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/snowy-3.6.5-hard-coded-download-signature-key-allows-unauthenticated-file-download"},{"type":"PACKAGE","url":"https://github.com/xiaonuobase/Snowy"},{"type":"ARTICLE","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"},{"type":"ARTICLE","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"},{"type":"ARTICLE","url":"https://github.com/xiaonuobase/Snowy/blob/v3.6.5/snowy-web-app/src/main/java/vip/xiaonuo/core/config/GlobalConfigure.java#L174-L175"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/xiaonuobase/snowy","events":[{"introduced":"2c9da36e218901c20cd3b261f33e75b89aeec984"},{"last_affected":"2c9da36e218901c20cd3b261f33e75b89aeec984"}],"database_specific":{"extracted_events":[{"introduced":"3.6.5"},{"last_affected":"3.6.5"}],"source":"AFFECTED_FIELD"}}],"versions":["3.6.5","v3.6.5"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-110214.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"}]}