GHSA-h5gf-cmm8-cg7c is a high-severity (CVSS 7.5) Information Exposure vulnerability in github.com/IceWhaleTech/CasaOS-UserService. O3 Security confirms whether GHSA-h5gf-cmm8-cg7c is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
CasaOS-UserService allows unauthorized access to any file
Real-World Exposure
github.com/IceWhaleTech/CasaOS-UserServiceReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.
Description
Summary
http://demo.casaos.io/v1/users/image?path=/var/lib/casaos/1/avatar.png
Originally it was to get the url of the user's avatar, but the path filtering was not strict, making it possible to get any file on the system.
Details
Construct paths to get any file.
Such as the CasaOS user database, and furthermore can obtain system root privileges.
PoC
http://demo.casaos.io/v1/users/image?path=/var/lib/casaos/conf/../db/user.db
Impact
v0.4.6 all previous versions
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/IceWhaleTech/CasaOS-UserService | all versions | 0.4.7 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/IceWhaleTech/CasaOS-UserService. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update github.com/IceWhaleTech/CasaOS-UserService to 0.4.7 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-h5gf-cmm8-cg7c is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-h5gf-cmm8-cg7c is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-h5gf-cmm8-cg7c. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-h5gf-cmm8-cg7c in your dependencies?
O3 detects GHSA-h5gf-cmm8-cg7c across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.