CVE-2026-37737_CVE-2026-37737

6.5 / 10

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

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.

Basic Information

ID CVE-2026-37737

Source mitre

Published Jun 5, 2026 at 00:00

Modified Jun 5, 2026 at 20:15

Affected Product

Vendor n/a

Product n/a

Version n/a

Affected Versions n/a n/a n/a

CWE Classification

CWE-625 CWE-346

References

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    "published": "2026-06-05T00:00:00.000Z",
    "modified": "2026-06-05T20:15:39.697Z",
    "type": "cve",
    "title": "CVE-2026-37737",
    "source": "mitre",
    "references": "https://github.com/ashleysommer/sanic-cors/blob/master/sanic_cors/core.py\nhttps://github.com/ashleysommer/sanic-cors\nhttps://pypi.org/project/Sanic-Cors/\nhttps://github.com/npbhatter17/security-advisories/blob/main/CVE-2026-37737-sanic-cors-advisory.md",
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