CVE-2026-107810 Nginx UI: Backup restore follows crafted symlinks into the live Nginx configuration path before restore flags are applied
Authenticated attackers can exploit symlink handling during backup restoration to modify live Nginx configuration files, potentially causing service disruption or unauthorized changes.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-107810?
CVE-2026-107810 is a high-severity path traversal vulnerability in 0xJacky nginx-ui, published on 9 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Nginx UI is a web user interface for the Nginx web server. From 2.0.0 until 2.5.0, internal/backup/restore.go extracts inner archives before applying the restore_nginx and restore_nginx_ui flags and permits symlinks targeting the live Nginx configuration path. An authenticated user who can create and restore backups can craft a valid backup that places a symlink in the staging tree and then writes a regular file through that link, even when both restore flags are false. This can persistently inject configuration or cause denial of service when the modified files are later consumed. This issue is fixed in version 2.5.0.
Which versions are affected by CVE-2026-107810?
3 open source packages ship an affected version, including github.com/0xJacky/Nginx-UI. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/0xJacky/Nginx-UI Go | From 1.9.10-0.20250517140552-daee3ac7ade1 | 1.9.10-0.20260728074146-a467ed652591 |
github.com/0xJacky/Nginx-UI Go | From 1.9.10-0.20250517140552-daee3ac7ade1 | 1.9.10-0.20260728074146-a467ed652591 |
github.com/0xJacky/Nginx-UI Go | From 1.9.10-0.20250517140552-daee3ac7ade1 | 1.9.10-0.20260728074146-a467ed652591 |
Products include Nginxui Nginx Ui.
How do I fix CVE-2026-107810?
Upgrade github.com/0xJacky/Nginx-UI to 1.9.10-0.20260728074146-a467ed652591 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-107810 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-107810 exists.
Other vulnerabilities in 0xJacky nginx-ui
- CVE-2026-33032 Nginx UI: Unauthenticated MCP Endpoint Allows Remote Nginx Takeover
- CVE-2026-27944 Nginx UI: Unauthenticated Backup Download with Encryption Key Disclosure
- CVE-2024-23827 Nginx-UI arbitrary file write through the Import Certificate feature
- CVE-2026-107806 Nginx UI: Authenticated Remote Code Execution via Backup Restore App Config Overwrite
- CVE-2026-33026 nginx-ui Backup Restore Allows Tampering with Encrypted Backups
Sources
Also known as GHSA-p8v3-89rh-jxc7, GO-2026-6707.