CVE-2026-107806 · GHSA-p393-cf76-4jmr
Nginx UI: Authenticated Remote Code Execution via Backup Restore App Config Overwrite
- Risk score
- 65/100
- CVSS
- 7.2 v3.1
- Exploit chance (30 days)
- 0.4%
- Published
- 9 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- Nginx UI is a web user interface for the Nginx web server. From 2.3.8 until 2.5.0, an authenticated administrator with an active secure session can submit attacker-controlled portable backup key material and a matching manifest to POST /api/restore. The restore flow trusts the supplied key, decrypts attacker-controlle…
- Affected
- github.com/0xJacky/Nginx-UI (go) >= 1.9.10-0.20260421071512-7864e378f5cf, < 1.9.10-0.20260728074146-a467ed652591
- Fix
- Upgrade github.com/0xJacky/Nginx-UI to 1.9.10-0.20260728074146-a467ed652591 or later.
- Exploitation
- Public proof of concept
Story map
At a glance
github.com/0xJacky/Nginx-UI: Amber, patch this week. Nginx UI is a web user interface for the Nginx web server. From 2.0.0 until 2.5.0, POST /api/login checks EnabledOTP but does not require a WebAuthn assertion when EnabledPasskey is true and no TOTP secret is configured. A passkey-only account is therefore issued a session after password verification, despite Enabled2…
The flaws
- CVE-2026-107806: Nginx UI: Authenticated Remote Code Execution via Backup Restore App Config Overwrite (CVSS 7.2 · EPSS 0%)
- CVE-2026-107808: Nginx UI: Authentication bypass: password login does not enforce a passkey-only second factor (2FA bypass) (CVSS 8.1 · EPSS 0%)
- CVE-2026-107809: Nginx-UI AuthRequired token cookie fallback enables CSRF against management APIs (CVSS 8.8 · EPSS 0%)
- CVE-2026-107811: 0xJacky/nginx-ui /api/nodes Leaks Cluster Node Tokens and Allows Cross-Node Impersonation as initUser (CVSS 8.8 · EPSS 0%)
The fix
Upgrade github.com/0xJacky/Nginx-UI: 2.5.0 or later on your release line
Who is exposed: github.com/0xJacky/Nginx-UI (go) >= 1.9.10-0.20250517140552-daee3ac7ade1, < 1.9.10-0.20260728074558-95cd21b70814
Where it stands
- Public proof of concept
Connects to
- Same weakness: Code injection (CWE-94). 239 other warnings in 30 days
- Same product: Earlier github.com/0xJacky/Nginx-UI warnings. 5 in the last 90 days
Why it is Amber
- CVSS 7.2 high
- Public exploit or proof of concept referenced
- On your watchlist: nginx, Go
Affected packages
| Package | Ecosystem | Vulnerable | Fixed in |
|---|---|---|---|
| github.com/0xJacky/Nginx-UI | go | >= 1.9.10-0.20260421071512-7864e378f5cf, < 1.9.10-0.20260728074146-a467ed652591 | 1.9.10-0.20260728074146-a467ed652591 |
References
- https://github.com/advisories/GHSA-p393-cf76-4jmr
- https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-p393-cf76-4jmr
- https://nvd.nist.gov/vuln/detail/CVE-2026-107806
- https://github.com/0xJacky/nginx-ui/commit/a467ed652591fc0cd1b466a1ec751b493faef9f7
- https://github.com/0xJacky/nginx-ui/releases/tag/v2.5.0
- https://github.com/advisories/GHSA-p393-cf76-4jmr
Original description
Nginx UI is a web user interface for the Nginx web server. From 2.3.8 until 2.5.0, an authenticated administrator with an active secure session can submit attacker-controlled portable backup key material and a matching manifest to POST /api/restore. The restore flow trusts the supplied key, decrypts attacker-controlled contents, and replaces the live app.ini, including protected nginx command settings such as TestConfigCmd. Triggering POST /api/nginx/test then executes the restored command in the Nginx UI runtime context, affecting confidentiality, integrity, and availability. This issue is fixed in version 2.5.0.
Last activity 9 Oct 2026. Patch Forecast updates every hour.