How severe is CVE-2026-4764?

CVE-2026-4764 has a CVSS 4.0 base score of 9.4, rated critical severity.

Is CVE-2026-4764 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-4764?

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.

Does CVE-2026-4764 have an EU (EUVD) identifier?

Yes. CVE-2026-4764 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36221.

When was CVE-2026-4764 published?

CVE-2026-4764 was published on 2026-06-11 and last updated on 2026-06-17.

CVE-2026-4764

CVE-2026-4764 is a critical-severity vulnerability with a CVSS 4.0 base score of 9.4. 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-862.

Key facts

Severity: Critical (CVSS 4.0 base score 9.4)
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36221
Weakness: CWE-862
Published: 2026-06-11
Last modified: 2026-06-17

Description

A Missing Authorization vulnerability in the playbook import functionality in Dialogflow CX on Google Cloud Platform allows an authenticated user with specific roles to escalate privileges and potentially take over a GCP project using a maliciously crafted playbook import. This vulnerability was patched on 15 March 2026, and no customer action is needed.

Frequently asked questions

What is CVE-2026-4764?: A Missing Authorization vulnerability in the playbook import functionality in Dialogflow CX on Google Cloud Platform allows an authenticated user with specific roles to escalate privileges and potentially take over a GCP project using a maliciously crafted playbook import. This vulnerability was patched on 15 March 2026, and no customer action is needed.
How severe is CVE-2026-4764?: CVE-2026-4764 has a CVSS 4.0 base score of 9.4, rated critical severity.
Is CVE-2026-4764 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-4764?: 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.
Does CVE-2026-4764 have an EU (EUVD) identifier?: Yes. CVE-2026-4764 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36221.
When was CVE-2026-4764 published?: CVE-2026-4764 was published on 2026-06-11 and last updated on 2026-06-17.

References

https://docs.cloud.google.com/dialogflow/docs/release-notes#May_07_2026

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