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GHSA-94jw-hqvj-vw74

sanic-cors contains an improper regular expression in the try_match() function

Source: GitHub Advisory Database (reviewed) Moderate CVE-2026-37737

Packages

EcosystemPackageAffectedFixed in
PyPI sanic-cors <= 2.2.0 no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.