CVEvulnerability

CVE-2026-37737

6.5 MEDIUM Published 2026-06-05 Modified 2026-06-17 Official page ↗
Status
Deferred
Published
2026-06-05
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Weaknesses
CWE-346, CWE-625

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

Weakness · CWE (2)

  • CWE-346 Origin Validation Error weakness
  • CWE-625 Permissive Regular Expression weakness

References