What is CVE-2026-91140?

CVE-2026-91140 is a critical-severity vulnerability in Progress Software Autonomous Rest Connector Genai Agents, classified under OS Command Injection. CVSS score: 9.6/10. Published 2026-10-06.

How severe is CVE-2026-91140?

Critical severity. CVSS v3 base score is 9.6 out of 10.

RCE in Progress Software Autonomous Rest Connector Genai Agents

CVE-2026-91140

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.

Vulnerability class: Command Injection (OS Command Injection)

Published 2026-10-06 · last modified 2026-10-06.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Progress Software Autonomous Rest Connector Genai Agents

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

Frequently asked questions

What is CVE-2026-91140?: CVE-2026-91140 is a critical-severity vulnerability in Progress Software Autonomous Rest Connector Genai Agents, classified under OS Command Injection. CVSS score: 9.6/10. Published 2026-10-06.
How severe is CVE-2026-91140?: Critical severity. CVSS v3 base score is 9.6 out of 10.