CVE-2025-12952Network attack vector

Project-level privilege escalation via service agent tokens

Published Dec 10, 2025 · Updated Dec 10, 2025

Privilege escalation in Google Cloud Dialogflow CX before February 2025 allows remote authenticated users to gain project-level access. Webhook editors could configure a webhook to authenticate with a Dialogflow service agent access token, causing calls to use the service agent’s broader project permissions. Agent-level Webhook Admin access was required; the resulting control allowed management of associated services, creating unauthorized resource use, costs, and depletion.

CVSS severity8.7
High
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in Google Cloud Dialogflow CX before February 2025 allows remote authenticated users to gain project-level access. Webhook editors could configure a webhook to authenticate with a Dialogflow service agent access token, causing calls to use the service agent’s broader project permissions. Agent-level Webhook Admin access was required; the resulting control allowed management of associated services, creating unauthorized resource use, costs, and depletion.

The record

CVE
CVE-2025-12952
Published
Dec 10, 2025
Updated
Dec 10, 2025
Vendor
Go standard library
Product
Dialogflow CX
Classifications
CWE-269, T1078.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2025-02

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Go standard library · Dialogflow CXversion=0 <2025-02

Published CVSS scores

8.7Google CloudCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1078.004Cloud Accounts

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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