CVE-2026-4764

CRITICAL

Privilege Escalation in Dialogflow CX via Playbook Import

Title source: cna

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.

References (1)

Core 1

Core References

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

Scores

CVSS v4 9.4

EPSS 0.0021

EPSS Percentile 10.8%

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Clear

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

CWE

CWE-862

Status published

Products (1)

Google Cloud/Dialogflow CX < 2026-03-15

Published Jun 11, 2026

Tracked Since Jun 11, 2026