CVE-2026-91140: Progress Software Autonomous Rest Connector Genai Agents

Critical severity, CVSS 9.6. EPSS: 1.9% chance of exploitation in the next 30 days.

An OS command injection vulnerability in the shell-based temporary-file cleanup instructions in Progress Software Autonomous REST Connector GenAI Agents ARCGenAI-Generator version 2.0 allows an attacker who supplies a crafted Swagger/OpenAPI document to execute arbitrary commands on a developer's machine when a user invokes the generator.

Affected products

• Progress Software Autonomous Rest Connector Genai Agents: from 2.0, before 2.1 (fixed in 2.1)

Published 2026-10-06. Last modified 2026-10-07.