Vulnerability · Published Oct 9, 2026 · Assigned by GitHub_M

CVE-2026-107810Nginx UI: Backup restore follows crafted symlinks into the live Nginx configuration path before restore flags are applied

High 8.1

In plain English

A high-severity security flaw in nginx-ui from 0xJacky. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.4%top 61.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	github.com/0xJacky/Nginx-UI	1.9.10-0.20260728074146-a467ed652591	GHSA-p8v3-89rh-jxc7
Go	github.com/0xJacky/Nginx-UI	1.9.10-0.20260728074146-a467ed652591	GO-2026-6707

Affected products (as reported)

Vendor	Product	Versions
0xJacky	nginx-ui	>= 2.0.0, < 2.5.0

Weakness: CWE-59, CWE-61 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

References

https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-p8v3-89rh-jxc7 x_refsource_CONFIRM
https://github.com/0xJacky/nginx-ui/commit/a467ed652591fc0cd1b466a1ec751b493faef9f7 x_refsource_MISC
https://github.com/0xJacky/nginx-ui/releases/tag/v2.5.0 x_refsource_MISC