CVE-2017-20146: Gorillatoolkit Handlers

Critical severity, CVSS 9.8. EPSS: 0.7% chance of exploitation in the next 30 days.

Usage of the CORS handler may apply improper CORS headers, allowing the requester to explicitly control the value of the Access-Control-Allow-Origin header, which bypasses the expected behavior of the Same Origin Policy.

Affected products

• Gorillatoolkit Handlers: before 1.3.0 (fixed in 1.3.0)

Published 2022-12-27. Last modified 2026-06-17.