CVE-2026-1078 PUBLISHED

An arbitrary file-write vulnerability in Pega Browser Extension (PBE) affects Pega Robotic Automation version 22.1 or R25 users who are running automations that work with Google Chrome or Microsoft Edge.

Assigner: Pega
Reserved: 16.01.2026 Published: 07.04.2026 Updated: 07.04.2026

An arbitrary file-write vulnerability in Pega Browser Extension (PBE) affects Pega Robotic Automation version 22.1 or R25 users who are running automations that work with Google Chrome or Microsoft Edge. A bad actor could create a website that includes malicious code. The vulnerability could occur if a Robot Runtime user navigates to the malicious website.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H
CVSS Score: 7.2

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	Present	Availability	High	Availability	High
Privileges Required	None
User Interaction	Passive

CVSS 4.0

Product Status

Vendor	Pegasystems
Product	Pega Robot Studio
Versions	Default: unaffected Version 22.1 is affected Version R25 is affected

Credits

Ramon Dunker from Achmea, Security Assessment Team finder

References

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

Problem Types

CWE-284: Improper Access Control CWE

Impacts

CAPEC-121: Exploit Process Communication