Critical 9.4Published Oct 9, 2026

CVE-2026-107806Nginx UI: Authenticated Remote Code Execution via Backup Restore App Config Overwrite

Updated under an hour ago (Oct 28, 2026, 3:10 PM ET)

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It affects 0xJacky nginx-ui and 1 other product. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.40%, higher than 34% of scored CVEs.

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Every CVE for 0xJacky nginx-ui

Exploited in the last 30 days

Nginx UI is a web user interface for the Nginx web server. From 2.3.8 until 2.5.0, an authenticated administrator with an active secure session can submit attacker-controlled portable backup key material and a matching manifest to POST /api/restore. The restore flow trusts the supplied key, decrypts attacker-controlled contents, and replaces the live app.ini, including protected nginx command settings such as TestConfigCmd. Triggering POST /api/nginx/test then executes the restored command in the Nginx UI runtime context, affecting confidentiality, integrity, and availability. This issue is fixed in version 2.5.0.

CVSS: 9.4 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Weakness (CWE): CWE-94
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.40% (percentile 34)
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Oct 13, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

0xJacky nginx-ui 0xjacky:nginx_ui (from the name)	from 2.3.8, < 2.5.0	CNA record
nginxui nginx_ui nginxui:nginx_ui	from 2.3.8 before 2.5.0	NVD

References

References

https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-p393-cf76-4jmr	x-refsource-confirm, exploit, vendor-advisory
https://github.com/0xJacky/nginx-ui/commit/a467ed652591fc0cd1b466a1ec751b493faef9f7	x-refsource-misc, patch
https://github.com/0xJacky/nginx-ui/releases/tag/v2.5.0	x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.