CVE-2020-15100 is a low-severity (CVSS 3.3) Uncontrolled Resource Consumption vulnerability in freewvs. A fix is available for freewvs — see the affected versions and patch details below.
freewvs vulnerable to denial of service through large files
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
freewvsReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.
Description
Impact
A user could create a large file that freewvs will try to read, which will terminate a scan process.
Patches
This has been patched by limiting the data freewvs reads: https://github.com/schokokeksorg/freewvs/commit/18bbf2043e53f69e0119d24f8ae4edb274afb9b2
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | freewvs | all versions | 0.1.1pip install --upgrade 'freewvs==0.1.1' |
Affected Products
freewvsschokokeksDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for freewvs, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update freewvs to 0.1.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-15100 is resolved across your whole dependency graph.
Workarounds
Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.
Frequently Asked Questions
Is CVE-2020-15100 in your dependencies?
Find it across PyPI, including transitive dependencies.