CVE-2026-85268
A Cross-Site Scripting (XSS) (CWE-79) vulnerability in the auth/handler in Google Cloud Identity Platform and Firebase Authentication versions prior to 2026-08-14 on iOS allows an unauthenticated remote attacker to execute arbitrary JavaScript using a malicious iOS bundle ID.
Published:Oct 30, 2026
Last Modified:Oct 30, 2026
EPS:Oct 30, 2026
EPSS Score:
CVSS Score:8.7
Affected Products
Vendor
Product
Action
Vendor
Google Cloud
Product
Identity Platform And Firebase Authentication
Google Cloud
Identity Platform And Firebase Authentication
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
