Server-Side Request Forgery (SSRF) in nginx-ui - #VU157112
Published: October 22, 2026
Vulnerability identifier: #VU157112
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose internal HTTP response content through server-side request forgery without completing the required secure-session verification.
The vulnerability exists due to missing secure-session enforcement in the TestHealthCheck endpoint when processing health-check test requests containing user-controlled URLs. A remote user can submit a crafted request to POST /api/site_navigation/test_health_check/:id with a chosen target_url, method, headers, body, and expected_text to trigger server-side requests and infer response content through substring-match results.
Affected software
nginx-ui
Remediation
Install security update from vendor's website.
nginx-ui - update to 2.9.0