GHSA-mc36-5m36-hjh5 is a high-severity (CVSS 8.1) CWE-77 vulnerability in slock. 1 public exploit reference exists, so weaponization risk is real. A fix is available for slock — see the affected versions and patch details below.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
GHSA-mc36-5m36-hjh5 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.
Where this sits among everything scored
Of 385,987 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.
Real-World Exposure
slockReal-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
An issue was discovered in the slock crate through 2020-11-17 for Rust. Slock<T> unconditionally implements Send and Sync.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🦀crates.io | slock | all versions | 0.2.0cargo update -p slock --precise 0.2.0 |
Affected Products
slockbrokenlampResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for slock, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update slock to 0.2.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-mc36-5m36-hjh5 is resolved across your whole dependency graph.
Workarounds
Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.
Frequently Asked Questions
Is GHSA-mc36-5m36-hjh5 in your dependencies?
Find it across crates.io, including transitive dependencies.