CVE-2026-107812 Nginx UI: Self-upgrade runs an unsigned binary verified only by a same-origin digest → RCE via a compromised mirror or MITM
Attackers can execute arbitrary code by compromising the upgrade mirror or performing MITM attacks during self-upgrades due to weak binary verification.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-107812?
CVE-2026-107812 is a high-severity vulnerability in 0xJacky nginx-ui, published on 9 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Nginx UI is a web user interface for the Nginx web server. From 2.0.0 until 2.5.0, the self-upgrade mechanism validates a downloaded binary only with a same-origin digest obtained from the same upgrade mirror. A compromised mirror or network attacker able to alter both responses can supply a malicious executable and matching digest. An operator-triggered upgrade is required, and the application installs and runs the attacker-controlled code in the Nginx UI process context on the next upgrade. This issue is fixed in version 2.5.0.
Weakness: CWE-494
Which versions are affected by CVE-2026-107812?
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 | 1.9.10-0.20260728114330-580585516dd8 |
github.com/0xJacky/Nginx-UI Go | From 1.9.10-0.20250517140552-daee3ac7ade1 | 1.9.10-0.20260728114330-580585516dd8 |
github.com/0xJacky/Nginx-UI Go | From 1.9.10-0.20250517140552-daee3ac7ade1 | 1.9.10-0.20260728114330-580585516dd8 |
Products include Nginxui Nginx Ui.
How do I fix CVE-2026-107812?
Upgrade github.com/0xJacky/Nginx-UI to 1.9.10-0.20260728114330-580585516dd8 or later.
Is CVE-2026-107812 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-107812 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-662p-52hx-cmh2, GO-2026-6705.