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Vulnerabilities CVE-2026-63743

CVE-2026-63743

Medium
Open
TLP:CLEAR

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

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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.

Details

CVSS Score
5.3
EPSS Score
0.18%

7.7th percentile

CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Confidence
90%
Published
Jul 20, 2026
Last Modified
Jul 28, 2026
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