GHSA-5j8w-r7g8-5472
Arrow2 allows double free in `safe` code
Blast Radius
arrow2🦀arrow2🦀arrow2Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects crates.io packages — download data is not available via public APIs for these ecosystems.
Description
The struct Ffi_ArrowArray implements #derive(Clone) that is inconsistent with
its custom implementation of Drop, resulting in a double free when cloned.
Cloning this struct in safe results in a segmentation fault, which is unsound.
This derive was removed from this struct. All users are advised to either:
- bump the patch version of this crate (for versions
v0.7,v0.8,v0.9), or - migrate to a more recent version of the crate (when using
<0.7).
Doing so elimitates this vulnerability (code no longer compiles).
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🦀crates.io | arrow2 | all versions | 0.7.1 |
| 🦀crates.io | arrow2 | ≥ 0.8.0&&< 0.8.2 | 0.8.2 |
| 🦀crates.io | arrow2 | ≥ 0.9.0&&< 0.9.2 | 0.9.2 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for arrow2. 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 arrow2 to 0.7.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-5j8w-r7g8-5472 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-5j8w-r7g8-5472 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-5j8w-r7g8-5472. 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-5j8w-r7g8-5472 in your dependencies?
O3 detects GHSA-5j8w-r7g8-5472 across crates.io dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.