GHSA-v829-x6hh-cqfq
MEDIUMGHSA-v829-x6hh-cqfq is a medium-severity (CVSS 6.2) Improper Input Validation vulnerability in github.com/crossplane/crossplane. O3 Security confirms whether GHSA-v829-x6hh-cqfq is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Crossplane-runtime contains Improper Input Validation via Compositions
Real-World Exposure
github.com/crossplane/crossplane🐹github.com/crossplane/crossplane🐹github.com/crossplane/crossplaneReal-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
Summary
Fuzz testing, by Ada Logics and sponsored by the CNCF, identified a vulnerability in the fieldpath package from crossplane/crossplane-runtime that an already highly privileged Crossplane user able to create or update Compositions could leverage to cause an out of memory panic in Crossplane.
Details
Compositions allow users to specify patches inserting elements into arrays at an arbitrary index. When a Composition is selected for a Composite Resource, patches are evaluated and if a specified index is greater than the current size of the target slice, that slice's size will be increased to the specified index, which could lead to an excessive amount of memory usage and therefore the Pod being OOM-Killed. The index is already capped to the maximum value for a uint32 (4294967295) when parsed, but that is still an unnecessarily large value.
Workaround
Users can restrict write privileges on Compositions to only admin users as a workaround.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/crossplane/crossplane | all versions | 1.9.2 |
| 🐹Go | github.com/crossplane/crossplane | ≥ 1.10.0&&< 1.10.3 | 1.10.3 |
| 🐹Go | github.com/crossplane/crossplane | ≥ 1.11.0&&< 1.11.2 | 1.11.2 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/crossplane/crossplane. 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/crossplane/crossplane to 1.9.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-v829-x6hh-cqfq 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-v829-x6hh-cqfq 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-v829-x6hh-cqfq. 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-v829-x6hh-cqfq in your dependencies?
O3 detects GHSA-v829-x6hh-cqfq across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.