Vulnerability · Published Jul 20, 2026 · Assigned by VulnCheck

CVE-2026-63743SurrealDB before 3.1.0 Port-Specific Deny Rule Bypass via HTTP Redirect

Medium 6.4

In plain English

A medium-severity server-side request forgery in surrealdb from surrealdb. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).

Severity (CVSS 3.1)6.4Medium

Exploit odds (30 days)0.2%top 83.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

SurrealDB before 3.1.0 contains a capability bypass vulnerability in HTTP redirect handling that allows authenticated users to circumvent port-scoped --deny-net rules. Attackers can chain an HTTP redirect from an allowed hostname to a denied host:port combination, and the redirect is followed because the port information is dropped during redirect policy evaluation.

Affected products (as reported)

Vendor	Product	Versions
surrealdb	surrealdb	0 – before 3.1.0

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

References

GitHub Security Advisory (GHSA-97vg-427p-8hx5) vendor-advisory
VulnCheck Advisory: SurrealDB before 3.1.0 Port-Specific Deny Rule Bypass via HTTP Redirect third-party-advisory