Auth bypass in Surrealdb
CVE-2025-71390
SurrealDB before 2.2.6, 2.3.6, and 2.1.8 (and 3.0.0-alpha.7 and earlier) fails to validate DNS-resolved hostnames against --deny-net network access restrictions in its http::* functions. An authenticated user can invoke http::<fn>(<url>) with a hostname that resolves to a denied IP address, causing the server to issue the request anyway and return the response. This bypasses network access controls, allowing access to restricted internal endpoints and potentially retrieving or altering sensitive information and credentials, depending on the deployment.
Vulnerability class: Broken Access Control
EPSS: 0.002 (15.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Surrealdb — versions 2.2.6, 2.2.0, 3.0.0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory, Vendor Advisory)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2025-71390?
- CVE-2025-71390 is a high-severity vulnerability in Surrealdb, classified under Incorrect Authorization. CVSS score: 8.8/10. Published 2026-07-18.
- How severe is CVE-2025-71390?
- High severity. CVSS v3 base score is 8.8 out of 10.