ridhinva/ghe-push-option-rce-scannerScanner: CVE-2026-3854 GitHub Enterprise Server Pre-auth RCE via Push Option Injection — Python checker (CISA KEV)
Improper neutralization of push option values in GHE. Attacker with push access achieves RCE on the instance.
| Field | Value |
|---|---|
| CVE | CVE-2026-3854 |
| Severity | CRITICAL |
| Product | GitHub Enterprise Server |
| CISA KEV | 2026-03-10 |
| Attack Type | RCE via Push Option Injection |
| Auth Required | None |
| Status | Versions |
|---|---|
| ❌ Vulnerable | GitHub Enterprise Server (all versions before fixes) |
| ✅ Fixed | Fixed in 3.14.25, 3.15.20, 3.16.16, 3.17.13, 3.18.7, 3.19.4 |
# Clone
git clone https://github.com/ridhinva/CVE-2026-3854-GHE-RCE.git
cd CVE-2026-3854-GHE-RCE
# Install deps (if any)
pip install requests
python3 ghe_rce_scanner.py example.com
python3 ghe_rce_scanner.py https://192.168.1.1
echo "target1.com" > targets.txt
echo "target2.com" >> targets.txt
python3 ghe_rce_scanner.py targets.txt
python3 ghe_rce_scanner.py --info
The scanner checks for exposed endpoints associated with this vulnerability and reports potential targets for manual verification.
| Source | Link |
|---|---|
| CISA KEV | https://www.cisa.gov/known-exploited-vulnerabilities-catalog |
| NVD Entry | https://nvd.nist.gov/vuln/detail/CVE-2026-3854 |
For authorized security testing and educational purposes only. Unauthorized access is illegal.
@c_y_p_h3r — Bug bounty hunter & security researcher
| Vendor Advisory |
| https://security.paloaltonetworks.com/CVE20263854 |