CVE-2021-40325 is a high-severity (CVSS 7.5) vulnerability in cobbler. A fix is available for cobbler — see the affected versions and patch details below.
Cobbler before 3.3.0 allows authorization bypass for modification of settings.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
CVE-2021-40325 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.
Where this sits among everything scored
Of 385,738 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.
Real-World Exposure
cobblerReal-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
Cobbler before 3.3.0 allows authorization bypass for modification of settings.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | cobbler | all versions | 3.3.0pip install --upgrade 'cobbler==3.3.0' |
Affected Products
cobblercobbler_projectDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for cobbler, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update cobbler to 3.3.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2021-40325 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-2021-40325 in your dependencies?
Find it across PyPI, including transitive dependencies.