GHSA-77qm-wvqq-fg79 — directus
MEDIUMGHSA-77qm-wvqq-fg79 is a medium-severity (CVSS 6.5) CWE-755 vulnerability in directus. 1 public exploit reference exists, so weaponization risk is real. A fix is available for directus — see the affected versions and patch details below.
Directus vulnerable to unhandled exception on illegal filename_disk value
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.
Exploitation and automatability from CISA’s SSVC triage for GHSA-77qm-wvqq-fg79.
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-77qm-wvqq-fg79 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 378,156 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.
directusnpmDescription
The Directus process can be aborted by having an authorized user update the filename_disk value to a folder and accessing that file through the /assets endpoint.
The vulnerability is patched and released in v9.15.0.
You can prevent this problem by making sure no (untrusted) non-admin users have permissions to update the filename_disk field on directus_files.
For more information
If you have any questions or comments about this advisory:
- Open a Discussion in directus/directus
- Email us at [email protected]
Credits
This vulnerability was first discovered and reported by Witold Gorecki.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | directus | all versions | 9.15.0npm install directus@9.15.0 |
Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for directus, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update directus to 9.15.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-77qm-wvqq-fg79 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-77qm-wvqq-fg79 can be triaged on real exposure rather than presence alone.
Tailored to GHSA-77qm-wvqq-fg79. 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-77qm-wvqq-fg79 in your dependencies?
O3 Security finds GHSA-77qm-wvqq-fg79 across npm dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.