CVE-2025-71390

SurrealDB before 2.3.6 deny-net Bypass via DNS Resolution

Published Jul 18, 2026 CVSS 4.0 · 5.8 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-m3c3-78fh-w3w7 SurrealDB allows bypass of deny-net flags via DNS resolution
History
Type Values Removed Values Added
CPEs cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha1:*:*:*:*:*:*
cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha2:*:*:*:*:*:*
cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha3:*:*:*:*:*:*
cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha4:*:*:*:*:*:*
cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha5:*:*:*:*:*:*
cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha6:*:*:*:*:*:*
cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha7:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
CPEs cpe:2.3:a:surrealdb:surrealdb:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Surrealdb
Surrealdb surrealdb
Vendors & Products Surrealdb
Surrealdb surrealdb
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title SurrealDB before 2.3.6 deny-net Bypass via DNS Resolution
Weaknesses CWE-863
References
Metrics cvssV4_0

{'score': 5.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:L/SC:H/SI:H/SA:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Jul 28, 2026, 1:48 AM
Reserved
Jul 16, 2026, 12:14 PM
Status
Analyzed
Published
Jul 18, 2026, 2:17 PM
Modified
Sep 29, 2026, 7:10 PM