GHSA-8wxp-xxp2-rcgx
MEDIUMGHSA-8wxp-xxp2-rcgx is a medium-severity (CVSS 6.8) vulnerability in volcano.sh/volcano. O3 Security confirms whether GHSA-8wxp-xxp2-rcgx is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Volcano's webhook server vulnerable to OOM due to unbounded HTTP request body size
Real-World Exposure
volcano.sh/volcano🐹volcano.sh/volcano🐹volcano.sh/volcanoReal-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 Volcano webhook server does not enforce a size limit on incoming HTTP request bodies. Any in-cluster pod that can reach the webhook endpoint may send an arbitrarily large request body, potentially causing the webhook server to be killed by OOM. All Volcano deployments with the webhook server exposed to in-cluster traffic are affected.
Patches
This issue will be fixed in the following versions:
- v1.14.2
- v1.13.3
- v1.12.4
Users running versions below these should upgrade accordingly.
Workarounds
No known workarounds. Upgrade to the patched versions listed above.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | volcano.sh/volcano | all versions | 1.12.4 |
| 🐹Go | volcano.sh/volcano | ≥ 1.13.0&&< 1.13.3 | 1.13.3 |
| 🐹Go | volcano.sh/volcano | ≥ 1.14.0&&< 1.14.2 | 1.14.2 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for volcano.sh/volcano. 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 volcano.sh/volcano to 1.12.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-8wxp-xxp2-rcgx 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-8wxp-xxp2-rcgx 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-8wxp-xxp2-rcgx. 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-8wxp-xxp2-rcgx in your dependencies?
O3 detects GHSA-8wxp-xxp2-rcgx across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.