1Panel command injection vulnerability in Firewall ip functionalityGHSA-p9xf-74xh-mhw5
HIGHFix: 1Panel-dev/1Panel@e17b80cGHSA-p9xf-74xh-mhw5 is a high-severity (CVSS 8.8) OS Command Injection vulnerability in github.com/1Panel-dev/1Panel. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for github.com/1Panel-dev/1Panel — see the affected versions and patch details below.
Exploitation Status
Proof-of-concept exploit code exists
- CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
- A successful exploit gives an attacker total control of the affected component, not partial access.
Exploitation and automatability from CISA’s SSVC triage for GHSA-p9xf-74xh-mhw5.
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
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 | 1.4.3go get github.com/1Panel-dev/1Panel@v1.4.3 |
Affected Products
1panelfit2cloudResearch 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, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
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
Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.
Frequently Asked Questions
Is GHSA-p9xf-74xh-mhw5 in your dependencies?
Find it across Go, including transitive dependencies.