CVE-2026-110214
LOW
CVSS 3.7
Published: 2026-10-13
Modified: 2026-10-13
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Description
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.
Quick Facts
| CVE ID | CVE-2026-110214 |
| CVSS Score | 3.7 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
| Published | 2026-10-13 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |
References
- https://github.com/xiaonuobase/Snowy/blob/v3.6.5/snowy-plugi…
- https://github.com/xiaonuobase/Snowy/blob/v3.6.5/snowy-plugi…
- https://github.com/xiaonuobase/Snowy/blob/v3.6.5/snowy-web-a…
- https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/snowy-dev-file-acc…
- https://www.vulncheck.com/advisories/snowy-3.6.5-hard-coded-…
- https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/snowy-dev-file-acc…