CVE-2026-80462: Privilege Escalation in Progress Chef Automate

Severity: critical (CVSS 10.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-09-11 · updated 2026-09-18
Weakness: CWE-306

Description

A vulnerability in the Chef Automate API gateway and identity validation path may allow an unauthenticated actor to gain elevated access to protected Chef Automate functionality under specific conditions.

Affected products

Progress Software Chef Automate: from 4.13.516 before 4.13.520 — fixed in 4.13.520

How to fix

Upgrade to a fixed version: Progress Software Chef Automate 4.13.520. Check the vendor advisory for mitigations.

References

https://community.progress.com/s/article/Critical-Security-Bulletin---August-2026---Chef-Automate-Security-Vulnerability

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