CVE-2026-37737
Published
CVSS v3
6.5
MEDIUM
CVSS v2
N/A
Affected
1
PROJECT
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.
A Sanic extension adding a decorator for CORS support. Based on flask-cors by Cory Dolphin.
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