GHSA-jwvj-g8pc-cx45
MEDIUMGHSA-jwvj-g8pc-cx45 is a medium-severity (CVSS 5) CWE-863 vulnerability in github.com/openfga/openfga. O3 Security confirms whether GHSA-jwvj-g8pc-cx45 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
OpenFGA's BatchCheck within-request deduplication produces incorrect authorization decisions via list-value cache-key collision
Real-World Exposure
github.com/openfga/openfgaReal-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
Description
In OpenFGA, under specific conditions, BatchCheck calls with multiple checks sent for the same object, relation, and user combination can result in improper policy enforcement.
Am I affected?
You are affected if you meet the following preconditions:
- You execute BatchCheck operations which rely on context.
- Multiple checks are sent within a single BatchCheck operation for the same user/object/relation combination, each containing context.
- The contexts between those checks differ in a specific way
Fix
Upgrade to OpenFGA v1.14.0
Acknowledgement
OpenFGA would like to thank @bugbunny-research for the discovery and detailed report.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/openfga/openfga | ≥ 1.8.0&&< 1.14.0 | 1.14.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/openfga/openfga. 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/openfga/openfga to 1.14.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-jwvj-g8pc-cx45 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-jwvj-g8pc-cx45 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-jwvj-g8pc-cx45. 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-jwvj-g8pc-cx45 in your dependencies?
O3 detects GHSA-jwvj-g8pc-cx45 across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.