CVE-2026-37737

MEDIUM 6.5

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

Vendor	n/a
Product	n/a
Published	Jun 5, 2026
Last Updated	Jun 5, 2026

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Affected Versions

n/a / n/a

n/a

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/ashleysommer/sanic-cors/blob/master/sanic_cors/core.py github.com: https://github.com/ashleysommer/sanic-cors pypi.org: https://pypi.org/project/Sanic-Cors/ github.com: https://github.com/npbhatter17/security-advisories/blob/main/CVE-2026-37737-sanic-cors-advisory.md