CVE-2026-110214
Snowy 3.6.5 Hard-coded Download Signature Key Allows Unauthenticated File Download
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: poc
- Automatable: no
- Technical impact: partial
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: poc · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- xiaonuobase Snowy
From 3.6.5 · through 3.6.5
References 5
GitHub · xiaonuobase/Snowy
- snowy-plugin/snowy-plugin-dev/src/main/java/vip/xiaonuo/dev/modular/file/service/impl/DevFileServiceImpl.java · L419-L445
- snowy-plugin/snowy-plugin-dev/src/main/java/vip/xiaonuo/dev/modular/file/service/impl/DevFileServiceImpl.java · L78
- snowy-web-app/src/main/java/vip/xiaonuo/core/config/GlobalConfigure.java · L174-L175