CVE-2026-1079: 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.

Severity: medium (CVSS 6.0 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-07 · updated 2026-10-26
Weakness: CWE-284

Description

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

How to fix

Upgrade to a fixed version: Pegasystems Pega Browser Extension (PBE) 3.1.45. Check the vendor advisory for mitigations.

References

https://support.pega.com/support-doc/pega-security-advisory-a26-vulnerability-remediation-note

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