TI-2026-55520 Aliases CVE-2026-80462 GHSA-pqcf-f89w-vr6m

Privilege Escalation in Progress Chef Automate

MEDIUM 53CWE-306Published 2026-09-11 · Updated 2026-09-18

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.02006 80th percentileScored 2026-11-08

Fix Fixed Chef Automate (Progress Software): 4.13.520, 1.0.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Progress	Chef Automate	4.13.516 to before 4.13.520	4.13.520, 1.0.0	Patch available	CNA

Chef Automate VendorProgress Affected 4.13.516 to before 4.13.520 Fixed in 4.13.520, 1.0.0 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:chef:automate::::::::	—	—	Chef

cpe:2.3:a:chef:automate:*:*:*:*:*:*:*:* Versions — — ·Chef

Remediation

Fix · CNA Chef Automate (Progress Software) Fixed in 4.13.520, 1.0.0

Timeline

2026-10-02 Threatist record created from CVE-2026-80462
2026-10-03 Alias added: GHSA-pqcf-f89w-vr6m
2026-10-14 EPSS moved to the 50th–90th percentile

References

Advisory 1

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

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Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences