CVE-2026-4764 PUBLISHED

Privilege Escalation in Dialogflow CX via Playbook Import

Assigner: GoogleCloud
Reserved: 24.03.2026 Published: 11.06.2026 Updated: 11.06.2026

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.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/U:Clear
CVSS Score: 9.4

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	Google Cloud
Product	Dialogflow CX
Versions	Default: unaffected affected from 0 to 2026-03-15 (excl.)

Credits

Sreeram KL reporter

References

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

Problem Types

CWE-862 Missing Authorization CWE

Impacts

CAPEC-233 Privilege Escalation