How severe is CVE-2026-80462?

CVE-2026-80462 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-80462 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-80462?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2026-80462 published?

CVE-2026-80462 was published on 2026-09-11 and last updated on 2026-09-18.

CVE-2026-80462

CVE-2026-80462 is a critical-severity vulnerability with a CVSS 3.x base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Published: 2026-09-11
Last modified: 2026-09-18

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.

Frequently asked questions

What is CVE-2026-80462?: 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.
How severe is CVE-2026-80462?: CVE-2026-80462 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-80462 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-80462?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2026-80462 published?: CVE-2026-80462 was published on 2026-09-11 and last updated on 2026-09-18.

References

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

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