Cross-site request forgery in nginx-ui - CVE-2026-84312
Published: August 14, 2026 / Updated: October 16, 2026
Vulnerability identifier: #VU142581
CSH Severity: Medium
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-84312
CWE-ID: CWE-352
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to authenticate a victim's browser as the attacker's account and disclose sensitive information.
The vulnerability exists due to improper authentication in the Casdoor SSO callback flow when handling OAuth callback requests. A remote attacker can submit a crafted authorization code and state value to authenticate the victim as the attacker's account and disclose sensitive information.
User interaction is required to visit an attacker-controlled page that submits the callback request.
Affected software
nginx-ui
How to mitigate CVE-2026-84312
Install security update from vendor's website.
nginx-ui - update to 2.3.10