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CVE-2026-37737

nvd nist
Published: Jun 5, 2026Modified: Jun 17, 2026Deferred

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6.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Exploitability: 2.8 / Impact: 3.6
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

sanic-cors version 2.2.0 and prior contains an improper regular expression in the try_match() function in sanic_cors/core.py that uses re.match without end-anchoring. This allows an attacker to bypass CORS origin allowlists by registering a domain that begins with a trusted origin string, to gain unauthorized access to cross-origin requests for authenticated resources.

Related CWEs

CWE-346
Origin Validation Error
The product does not properly verify that the source of data or communication is valid.
CWE-625
Permissive Regular Expression
The product uses a regular expression that does not sufficiently restrict the set of allowed values.

References (4)

Source: cve@mitre.org
Source: cve@mitre.org
Source: cve@mitre.org
Source: cve@mitre.org

Timeline

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