Google Cloud Build Comment Control Bypass via Webhook Suppression
Summary
| CVE | CVE-2026-19410 |
|---|---|
| State | PUBLISHED |
| Assigner | GoogleCloud |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-31 09:17:03 UTC |
| Updated | 2026-08-31 18:50:00 UTC |
| Description | An Incorrect Authorization vulnerability in GitHub Trigger Comment Control in Google Cloud Build prior to 2026-06-24 on Google Cloud Platform allows a remote attacker to execute unreviewed code in the build environment using webhook suppression. This vulnerability was patched on 24 June 2026, and no customer action is needed. |
Risk And Classification
Primary CVSS: v4.0 9.4 CRITICAL from f45cbf4e-4146-4068-b7e1-655ffc2c548c
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/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
EPSS: 0.001970000 probability, percentile 0.095280000 (date 2026-09-01)
Problem Types: CWE-345 | CWE-367 | CWE-367 CWE-367 Time-of-check time-of-use (TOCTOU) race condition | CWE-345 CWE-345 Insufficient Verification of Data Authenticity
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | f45cbf4e-4146-4068-b7e1-655ffc2c548c | Secondary | 9.4 | CRITICAL | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/C... |
| 4.0 | CNA | CVSS | 9.4 | CRITICAL | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/U:Clear |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowAttack Requirements
NonePrivileges Required
LowUser Interaction
PassiveConfidentiality
HighIntegrity
HighAvailability
HighSub Conf.
HighSub Integrity
HighSub Availability
HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/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
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Google Cloud | Google Cloud Build | affected 2026-06-24 date | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| docs.cloud.google.com/build/docs/release-notes | f45cbf4e-4146-4068-b7e1-655ffc2c548c | docs.cloud.google.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: inspector-ambitious (en)
There are currently no legacy QID mappings associated with this CVE.