CVE-2026-8874: Securly

High severity, CVSS 7.1. EPSS: 0.2% chance of exploitation in the next 30 days.

Version 3.0.7 of the Securly Chrome Extension downloads JSON files containing crisis alert keywords and filtering rules over unencrypted HTTP via the Fetch API. Other endpoints in the same extension correctly fetch IWF and CIPA data over HTTPS, demonstrating an inconsistent implementation of TLS.

Affected products

• Securly Securly: version 3.0.7 only

Published 2026-06-03. Last modified 2026-07-22.