CVE-2026-85268

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{"bugzilla": {"description": "Google Cloud Identity Platform: Firebase Authentication: Google Cloud Identity Platform and Firebase Authentication: Arbitrary JavaScript execution via malicious iOS bundle identifier", "id": "2563905", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2563905"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "status": "draft"}, "cwe": "CWE-79", "details": ["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.", "A flaw was found in Google Cloud Identity Platform and Firebase Authentication. An unauthenticated remote attacker can exploit a Cross-Site Scripting (XSS) vulnerability in the authentication handler by supplying a malicious iOS bundle identifier. This issue allows the attacker to execute arbitrary JavaScript in the context of the user's session, potentially compromising user data."], "name": "CVE-2026-85268", "public_date": "2026-10-30T10:20:06Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-85268\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-85268\nhttps://firebase.google.com/support/releases#auth-helper-fix"], "statement": "This vulnerability is rated as Moderate severity because exploitation requires victim interaction to handle an untrusted identifier, limiting the potential compromise to the client-side session context. The affected Firebase Authentication and Google Cloud Identity Platform components are third-party iOS services that are not shipped or supported within Red Hat software distributions. Consequently, standard Red Hat enterprise products and environments are not directly affected by this flaw.", "threat_severity": "Moderate"}

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