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CRITICAL severity

Cobbler has Exposed Dangerous Method or FunctionGHSA-8787-63px-3m23

CRITICALFix: cobbler/cobbler#1921

GHSA-8787-63px-3m23 is a critical-severity (CVSS 9.8) CWE-749 vulnerability in cobbler. EPSS puts its 30-day exploitation probability at 68.1% (99th percentile). A fix is available for cobbler — see the affected versions and patch details below.

Also known asCVE-2018-10931PYSEC-2026-313
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
68.1%probability of exploitation in next 30 days
High Risk0.00%
Lower risk than most CVEs99th percentile — riskier than 99% of all scored CVEsHighest risk
26.4%43.5%60.6%77.7%36.0%68.1%May 26Sep 26Nov 26

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

1 pkg affected
🐍cobbler

Real-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

It was found that cobbler 2.6.x exposed all functions from its CobblerXMLRPCInterface class over XMLRPC. A remote, unauthenticated attacker could use this flaw to gain high privileges within cobbler, upload files to arbitrary location in the context of the daemon.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIcobbler≥ 2.6.0&&< 3.0.03.0.0pip install --upgrade 'cobbler==3.0.0'

Affected Products

2 products · 4 configurations
Application
cobblercobbler_project
≥ 2.6.0 && ≤ 2.6.11
range
Application
satelliteredhat
3 versions
5.65.75.8

Detection & mitigation playbook

Open-source dependency

  1. Detect

    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.

  2. Fix

    Update cobbler to 3.0.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-8787-63px-3m23 is resolved across your whole dependency graph.

  3. 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.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatCritical
Workaround published by Red Hat
If SELinux is enabled, it might prevent some locations from accepting uploaded files from the attacker. This prevents some basic attacks allowing remote code execution, although it would not exclude all other possibilities.
Source: Red Hat security advisory for GHSA-8787-63px-3m23 (CC BY 4.0)
ProductFixed inAdvisory
Red Hat Satellite 5.6cobbler-0:2.0.7-44.1.el6satRHSA-2018:2372

Frequently Asked Questions

It was found that cobbler 2.6.x exposed all functions from its CobblerXMLRPCInterface class over XMLRPC. A remote, unauthenticated attacker could use this flaw to gain high privileges within cobbler, upload files to arbitrary location in the context of the daemon.
O3 Security · Impact-Aware SCA

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Cobbler has Exposed Dangerous Method or Function