HIGH 8.7 NVD

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-

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.

References

https://firebase.google.com/support/releases#auth-helper-fix

Published: 2026-10-30 · Source: NVD · Feed updated: 2026-10-30

This high severity vulnerability with a CVSS score of 8.7 was published on 2026-10-30 via NVD.

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