Cross-site request forgery in Nginx UI management APIs
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-352.
Summary
Nginx UI from 2.0.0 before 2.5.0 and the Go module github.com/0xJacky/Nginx-UI from 1.9.10-0.20250517140552-daee3ac7ade1 before 1.9.10-0.20260728074433-a3999bd78a3b are affected. A browser-managed token cookie is accepted as an API credential, and some management endpoints lack CSRF or Origin checks (CWE-352). A remote attacker can make a logged-in administrator's browser change Nginx configuration through cross-site requests. A public exploit is linked in the references.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
Nginx UI is a web user interface for the Nginx web server. From 2.0.0 until 2.5.0, AuthRequired accepts a browser-managed token cookie as an API credential after the front end stores the JWT in that cookie. Because management endpoints do not universally require a CSRF token or perform Origin or Referer validation, a remote attacker can induce a logged-in administrator's browser to submit authenticated cross-site state-changing requests, including POST /api/configs. The attack requires an administrator account without OTP/Passkey or a target endpoint that does not require secure-session proof. The attacker cannot read the cross-origin response but can modify Nginx configuration, trigger reloads, or invoke other management operations reachable with the victim's session. This issue is fixed in version 2.5.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| 0xJacky | nginx-ui | 2.0.0 to before 2.5.0 | 2.5.0 | Patch available | CNA |
| — | github.com/0xJacky/Nginx-UI (Go) | 1.9.10-0.20250517140552-daee3ac7ade1 to before 1.9.10-0.20260728074433-a3999bd78a3b | 1.9.10-0.20260728074433-a3999bd78a3b | Patch available | GHSA-33rr-wq23-g6gg |
- nginx-ui Vendor0xJacky Affected 2.0.0 to before 2.5.0 Fixed in 2.5.0 Patch available CNA
- github.com/0xJacky/Nginx-UI (Go) Vendor— Affected 1.9.10-0.20250517140552-daee3ac7ade1 to before 1.9.10-0.20260728074433-a3999bd78a3b Fixed in 1.9.10-0.20260728074433-a3999bd78a3b Patch available GHSA-33rr-wq23-g6gg
Remediation
Upgrade Nginx UI to version 2.5.0 and the Go module github.com/0xJacky/Nginx-UI to 1.9.10-0.20260728074433-a3999bd78a3b.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA nginx-ui (0xJacky) Fixed in 2.5.0
- Fix · GHSA-33rr-wq23-g6gg github.com/0xJacky/Nginx-UI (Go) Fixed in 1.9.10-0.20260728074433-a3999bd78a3b Advisory →
Timeline
- 2026-10-09 Threatist record created from CVE-2026-107809
- 2026-10-09 Alias added: GHSA-33rr-wq23-g6gg
References
More 0xJacky Nginx Ui vulnerabilities
- TI-2026-25478 Nginx UI: Unauthenticated MCP Endpoint Allows Remote Nginx Takeover CVSS 3.1CRITICAL 9.8
- TI-2026-25472 nginx-ui Backup Restore Allows Tampering with Encrypted Backups CVSS 4.0CRITICAL 9.4
- TI-2026-22288 Nginx UI: Unauthenticated Backup Download with Encryption Key Disclosure CVSS 3.1CRITICAL 9.8
- TI-2024-15821 Nginx-UI arbitrary file write through the Import Certificate feature CVSS 3.1CRITICAL 9.8
- TI-2026-70057 Code injection in Nginx UI backup restore allows code execution CVSS 4.0CRITICAL 9.4
- TI-2026-32056 Nginx UI: Server-Side Request Forgery (SSRF) via Cluster Proxy Middleware Allows Access to Internal Services CVSS 3.1CRITICAL 9.9
Sources
- CVE-2026-107809 · CVE Program
- CVE-2026-107809 · NVD
- FIRST EPSS
- GHSA-33rr-wq23-g6gg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences