GHSA-x7c8-4x3h-874w — supervisor
HIGHGHSA-x7c8-4x3h-874w is a high-severity (CVSS 8.8) Incorrect Default Permissions vulnerability in supervisor. 8 public exploit references exist, so weaponization risk is real. A fix is available for supervisor — see the affected versions and patch details below.
Incorrect Default Permissions in Supervisor
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
GHSA-x7c8-4x3h-874w plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE sits: patch-first territory.
Where this sits among everything scored
Of 377,166 CVEs with a current EPSS score, this one falls in the 50–90% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
supervisor🐍supervisor🐍supervisor🐍supervisorReal-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
The XML-RPC server in supervisor before 3.0.1, 3.1.x before 3.1.4, 3.2.x before 3.2.4, and 3.3.x before 3.3.3 allows remote authenticated users to execute arbitrary commands via a crafted XML-RPC request, related to nested supervisord namespace lookups.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | supervisor | all versions | 3.0.1pip install --upgrade 'supervisor==3.0.1' |
| 🐍PyPI | supervisor | ≥ 3.1.0&&< 3.1.4 | 3.1.4pip install --upgrade 'supervisor==3.1.4' |
| 🐍PyPI | supervisor | ≥ 3.2.0&&< 3.2.4 | 3.2.4pip install --upgrade 'supervisor==3.2.4' |
| 🐍PyPI | supervisor | ≥ 3.3.0&&< 3.3.3 | 3.3.3pip install --upgrade 'supervisor==3.3.3' |
Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Supervisor 3.0a1 < 3.3.2 - XML-RPC (Authenticated) Remote Code Execution (Metasploit)
by Metasploit · Sep 25, 2017
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for supervisor, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update supervisor to 3.0.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-x7c8-4x3h-874w 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.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-x7c8-4x3h-874w can be triaged on real exposure rather than presence alone.
Tailored to GHSA-x7c8-4x3h-874w. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
How to detect GHSA-x7c8-4x3h-874w
A community-maintained Nuclei template exists for this CVE. You can scan for it directly:
nuclei -id ghsa-x7c8-4x3h-874w -u https://target- Template
- XML-RPC Server - Remote Code Execution
- Severity
- high
- Impact
- Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the target system.
- Remediation
- Apply the latest security patches or disable the XML-RPC server if not required.
Template by ProjectDiscovery nuclei-templates (notnotnotveg), MIT licensed. View the full template. Scan only systems you are authorised to test.
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.
| Product | Fixed in | Advisory |
|---|---|---|
| CloudForms Management Engine 5.8 | ansible-tower-0:3.1.5-1.el7at | RHSA-2017:3005 |
Frequently Asked Questions
Is GHSA-x7c8-4x3h-874w in your dependencies?
O3 Security finds GHSA-x7c8-4x3h-874w across PyPI dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.