CVE-2026-8874
CVE-2026-8874

Currently unrated

Key Information:

Vendor: Securly
Status: Securly Chrome Extension
Vendor: CVE Published:; 3 June 2026

What is CVE-2026-8874?

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 Version(s)

Securly Chrome Extension 0 < 3.0.7

References

https://kb.cert.org/vuls/id/595768

Download the Critical Vulnerability Management Cheat Sheet

Timeline

Vulnerability published
Jun 3, 2026
Vulnerability Reserved
May 18, 2026

CVE-2026-8874 Data

JSON