GHSA-p9xf-74xh-mhw5
HIGH1Panel command injection vulnerability in Firewall ip functionality
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.
Blast Radius
github.com/1Panel-dev/1PanelReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.
Description
Summary
An OS command injection vulnerability exists in 1Panel firewall functionality. A specially-crafted HTTP request can lead to arbitrary command execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.
Details
1Panel firewall functionality /hosts/firewall/ip endpoint read user input without validation, the attacker extends the default functionality of the application, which execute system commands.
PoC
the payload ; sleep 3 # will lead server response in 3 seconds
the payload ; sleep 6 # will lead server response in 6 seconds
Impact
An attacker can execute arbitrary code on the target system, which can lead to a complete compromise of the system.
Patches
The vulnerability has been fixed in v1.4.3.
Workarounds
It is recommended to upgrade the version to v1.4.3.
References
If you have any questions or comments about this advisory:
Open an issue in https://github.com/1Panel-dev/1Panel Email us at [email protected]
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/1Panel-dev/1Panel | all versions | 1.4.3 |
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 github.com/1Panel-dev/1Panel. 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 github.com/1Panel-dev/1Panel to 1.4.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-p9xf-74xh-mhw5 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-p9xf-74xh-mhw5 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-p9xf-74xh-mhw5. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-p9xf-74xh-mhw5 in your dependencies?
O3 detects GHSA-p9xf-74xh-mhw5 across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.