CVE-2026-12715 | BDVDB-2026-349113 Detail

Google CloudFirebase Studio

Description#

Missing Authorization in Google Cloud Firebase Studio versions prior to 2026-04-15 on Google Cloud Platform allows an attacker to download other users' deployed source code and access sensitive data via unauthorized GCS URL signing requests. This vulnerability was patched on 15 April 2026, and no customer action is needed.

Impact#

CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs

Weaknesses#

CWE-862 Missing Authorization

References#

https://docs.cloud.google.com/support/bulletins#gcp-2026-043

Exploit#

No public exploit known

History#

Version 12026-07-17Record published in the CVE List.

Published

Published: 2026-07-17
Last modified: 2026-07-17

Vendor information

Vendor: Google Cloud
Product: Firebase Studio

All Google Cloud vulnerabilities

Score

8.5 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 28.9.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Missing Authorization

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 2026-04-15
Fixed
2026-04-15

Scoring System

CVSS v4.0

8.5 High

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Attack Requirements	None
Privileges Required	Low
User Interaction	None
Vulnerable System Confidentiality	High
Vulnerable System Integrity	None
Vulnerable System Availability	None
Subsequent System Confidentiality	High
Subsequent System Integrity	High
Subsequent System Availability	High

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).