GHSA-g4mq-6fp5-qwcf is a medium-severity (CVSS 5) CWE-377 vulnerability in ansible. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether GHSA-g4mq-6fp5-qwcf is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Ansible vulnerable to Exposure of Resource to Wrong Sphere and Insecure Temporary File
Real-World Exposure
ansible🐍ansible🐍ansibleReal-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
A race condition flaw was found in Ansible Engine 2.7.17 and prior, 2.8.9 and prior, 2.9.6 and prior when running a playbook with an unprivileged become user. When Ansible needs to run a module with become user, the temporary directory is created in /var/tmp. This directory is created with "umask 77 && mkdir -p <dir>"; this operation does not fail if the directory already exists and is owned by another user. An attacker could take advantage to gain control of the become user as the target directory can be retrieved by iterating '/proc/<pid>/cmdline'.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | ansible | all versions | 2.7.17 |
| 🐍PyPI | ansible | ≥ 2.8.0a1&&< 2.8.11 | 2.8.11 |
| 🐍PyPI | ansible | ≥ 2.9.0a1&&< 2.9.7 | 2.9.7 |
Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for ansible. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update ansible to 2.7.17 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-g4mq-6fp5-qwcf 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 pinpoints whether GHSA-g4mq-6fp5-qwcf is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-g4mq-6fp5-qwcf. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
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.
Ansible Engine 2.7.16, 2.8.10, and 2.9.6 as well as previous versions are affected. Ansible Tower 3.4.5, 3.5.5 and 3.6.3 as well as previous versions are affected. In Red Hat OpenStack Platform, because the flaw has a lower impact, ansible is not directly customer exposed, and the fix would require a substantial…
Frequently Asked Questions
Is GHSA-g4mq-6fp5-qwcf in your dependencies?
O3 detects GHSA-g4mq-6fp5-qwcf across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.