CVE-2023-39137 is a high-severity (CVSS 7.8) Improper Input Validation vulnerability in archive. 2 public exploit or proof-of-concept references are indexed, so weaponization risk is real. A fix is available for archive — see the affected versions and patch details below.
Filename spoofing in archive
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 CVE-2023-39137.
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
archiveReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Pub packages — download data is not available via public APIs for these ecosystems.
Description
An issue in Archive v3.3.7 allows attackers to spoof zip filenames which can lead to inconsistent filename parsing.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🎯Pub | archive | all versions | 3.3.8dart pub upgrade archive |
Affected Products
archivearchive_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 archive, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update archive to 3.3.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-39137 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 CVE-2023-39137 in your dependencies?
Find it across Pub, including transitive dependencies.