CVE-2018-1000226 — cobbler
CRITICALCVE-2018-1000226 is a critical-severity (CVSS 9.8) CWE-732 vulnerability in cobbler. EPSS puts its 30-day exploitation probability at 12.6% (96th percentile). A fix is available for cobbler — see the affected versions and patch details below.
Cobbler Improper Validation of Security Tokens
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
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 version Verified as present in Cobbler versions 2.6.11+, but code inspection suggests at least 2.0.0+ or possibly even older versions may be vulnerable contains a Incorrect Access Control vulnerability in XMLRPC API (/cobbler_api) that can result in Privilege escalation, data manipulation or exfiltration, LDAP credential harvesting. This attack appear to be exploitable via "network connectivity". Taking advantage of improper validation of security tokens in API endpoints. Please note this is a different issue than CVE-2018-10931.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | cobbler | all versions | 3.0.0pip install --upgrade 'cobbler==3.0.0' |
Affected Products
cobblercobblerdDetection & 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 3.0.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2018-1000226 is resolved across your whole dependency graph.
Workarounds
Close the privilege gap rather than the entry point: audit which accounts, roles and service identities can reach the affected operation, drop the component to the least privilege it actually needs, and review file and directory permissions created by earlier installs — a default left in place is what makes this reachable.
How to detect CVE-2018-1000226
A community-maintained Nuclei template exists for this CVE. You can scan for it directly:
nuclei -id cve-2018-1000226 -u https://target- Template
- Cobbler - Authentication Bypass
- Severity
- critical
- Impact
- Unauthenticated attackers can bypass authentication to gain unauthorized access, leading to privilege escalation, data manipulation or exfiltration, and LDAP credential harvesting.
- Remediation
- Apply the latest security patches or updates provided by the vendor to fix the authentication bypass vulnerability in Cobbler.
Template by ProjectDiscovery nuclei-templates (c-sh0), MIT licensed. View the full template. Scan only systems you are authorised to test.
Frequently Asked Questions
Is CVE-2018-1000226 in your dependencies?
Find it across PyPI, including transitive dependencies.