CVE-2026-80462Network attack vectorHinoki check available

Unauthenticated privilege escalation via identity validation bypass

Published Sep 11, 2026 · Updated Sep 18, 2026

Authentication bypass in Progress Software Chef Automate 4.13.516 through 4.13.519 allows remote attackers to gain elevated access. The API gateway's identity-validation path fails to authenticate certain requests before routing them to protected functionality. No credentials or user interaction are required, but Progress has not disclosed the request conditions or exact privileged operations exposed.

CVSS severity10.0
Critical
EPSS probability2.01%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Authentication bypass in Progress Software Chef Automate 4.13.516 through 4.13.519 allows remote attackers to gain elevated access. The API gateway's identity-validation path fails to authenticate certain requests before routing them to protected functionality. No credentials or user interaction are required, but Progress has not disclosed the request conditions or exact privileged operations exposed.

The record

CVE
CVE-2026-80462
Published
Sep 11, 2026
Updated
Sep 18, 2026
Vendor
Progress Software Corporation
Product
Chef Automate
Classifications
CWE-306, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.13.516 <4.13.520

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Progress Software Corporation · Chef Automateversion=4.13.516 <4.13.520

Published CVSS scores

10.0Progress Software CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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