CVE-2026-4644CWE-863broken-access-control

CVE-2026-4644

published September 4, 2026

CVSS
8.5
EPSS
0%
Percentile
27.5
In the wild
Unconfirmed
What it is

A Missing Authorization vulnerability in HTTP Connector in Google Cloud Integration Connectors versions prior to 2025-12-11 on Google Cloud Platform allows an authenticated user to escalate privileges and take over a Google Cloud Project using unauthorized service account attachment.

This vulnerability was patched on 11 December 2025, and no customer action is needed.

The record
Technical detail
CVSS
8.5 · NONE
CVSS v4.0
8.5 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H/U:Clear
EPSS
0.00351 · 27.5th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-09-04T15:17Z
References (1)
https://docs.cloud.google.com/support/bulletins#gcp-2026-059 · f45cbf4e-4146-4068-b7e1-655ffc2c548c
EPSS history
Timeline
  • 06 SEP 03:32Z
    EPSS moved — → 0%
    epss
  • 04 SEP 10:19Z
    Improper Authorization in Google Cloud Integration Connectors Leads to Project Takeover
    cvelistv5