High severity · published Oct 9, 2026
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
7.5
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NG
nginx-ui · 0xJacky
>= 2.0.0, < 2.5.0 · source: vendor
NU
Nginx UI · Nginxui
2.0.0 before 2.5.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-107812
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-107812
x_refsource_CONFIRM
https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-662p-52hx-cmh2
x_refsource_MISC
https://github.com/0xJacky/nginx-ui/commit/580585516dd87a8b176bcdac258db70c3b64b7ec
x_refsource_MISC
https://github.com/0xJacky/nginx-ui/releases/tag/v2.5.0
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