cycle-import-check vulnerable to Command InjectionGHSA-995x-33wq-8gc9
CRITICALFix: Soontao/cycle-import-check@1ca97b5GHSA-995x-33wq-8gc9 is a critical-severity (CVSS 9.8) OS Command Injection vulnerability in cycle-import-check. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for cycle-import-check — see the affected versions and patch details below.
Exploitation Status
Proof-of-concept exploit code exists
- CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
- A successful exploit gives an attacker total control of the affected component, not partial access.
Exploitation and automatability from CISA’s SSVC triage for GHSA-995x-33wq-8gc9.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.
cycle-import-checknpmDescription
The package cycle-import-check before version 1.3.2 is vulnerable to Command Injection via the writeFileToTmpDirAndOpenIt function due to improper user-input sanitization.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | cycle-import-check | all versions | 1.3.2npm install cycle-import-check@1.3.2 |
Affected Products
cycle-import-checkcycle-import-check_projectResearch 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 cycle-import-check, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update cycle-import-check to 1.3.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-995x-33wq-8gc9 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-995x-33wq-8gc9 in your dependencies?
Find it across npm, including transitive dependencies.