oqs's Post-Quantum Signature scheme Rainbow level I parametersets brokenGHSA-h864-m8vm-3xvj
GHSA-h864-m8vm-3xvj is a security vulnerability in oqs. A fix is available for oqs — see the affected versions and patch details below.
Real-World Exposure
oqsReal-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
Ward Beullens found a practical key-recovery attack against Rainbow.
The level I parametersets are removed from liboqs starting from version 0.7.2.
Find the scientific details in Breaking Rainbow Takes a Weekend on a Laptop.
This means all the oqs::sig::Algorithm::RainbowI* variants are insecure.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🦀crates.io | oqs | all versions | 0.7.2cargo update -p oqs --precise 0.7.2 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for oqs, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update oqs to 0.7.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-h864-m8vm-3xvj 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.
Frequently Asked Questions
Is GHSA-h864-m8vm-3xvj in your dependencies?
Find it across crates.io, including transitive dependencies.