CVE-2026-1079: Pegasystems Pega Browser Extension Pbe

Medium severity, CVSS 6.0. EPSS: 0.3% chance of exploitation in the next 30 days.

A native messaging host vulnerability in Pega Browser Extension (PBE) affects users of all versions of Pega Robotic Automation who have installed Pega Browser Extension. A bad actor could create a website that contains malicious code that targets PBE. The vulnerability could occur if a user navigates to this website. The malicious website could then present an unexpected message box.

Affected products

• Pegasystems Pega Browser Extension Pbe: before 3.1.45 (fixed in 3.1.45)

Published 2026-04-07. Last modified 2026-06-17.