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TI-2026-28097 Aliases CVE-2026-37737GHSA-94jw-hqvj-vw74

sanic-cors version 2.2.0 and prior contains an improper regular expression in the…

Priority LOW 28CWE-346Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-346.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00164 5th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—sanic-cors (PyPI)up to 2.2.0—No fix listedGHSA-94jw-hqvj-vw74
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • sanic-cors (PyPI) Vendor— Affected up to 2.2.0 Fixed in — No fix listed GHSA-94jw-hqvj-vw74

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-37737
  2. 2026-10-03 Alias added: GHSA-94jw-hqvj-vw74

References

Advisory 1

Other 5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences