GHSA-rhq6-9rgh-v45c
MEDIUMGHSA-rhq6-9rgh-v45c is a medium-severity (CVSS 5) vulnerability in github.com/pterodactyl/wings. O3 Security confirms whether GHSA-rhq6-9rgh-v45c is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Pterodactyl Wings: Chmod operation can be used to change permissions of files outside of the server container
Blast Radius
github.com/pterodactyl/wingsReal-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
In wings/internal/ufs/fs_unix.go (line 92-94), this function is defined and is used to change permissions of files in the server:
func (fs *UnixFS) fchmodat(op string, dirfd int, name string, mode FileMode) error {
return ensurePathError(unix.Fchmodat(dirfd, name, uint32(mode), 0), op, name)
}
This call to the unix function fchmodat(int fd, char* name, mode_t mode, int flags) does not have the flag AT_SYMLINK_NOFOLLOW set, and Wings neither checks or validate if the target file is a symlink. This allows one to change permissions of files or folders outside of the server container by making symlinks to existing files in the host and then chmoding it.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/pterodactyl/wings | ≥ 1.11.9&&< 1.12.2 | 1.12.2 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/pterodactyl/wings. 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/pterodactyl/wings to 1.12.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-rhq6-9rgh-v45c 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-rhq6-9rgh-v45c 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-rhq6-9rgh-v45c. 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-rhq6-9rgh-v45c in your dependencies?
O3 detects GHSA-rhq6-9rgh-v45c across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.