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Authentication-Hijacking

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critical advisory

Gematik Authenticator Authentication Flow Hijacking Vulnerability (CVE-2026-33875)

Gematik Authenticator versions prior to 4.16.0 are vulnerable to authentication flow hijacking via malicious deep links, potentially allowing attackers to authenticate with victim user identities.

cve-2026-33875 authentication-hijacking gematik-authenticator deeplink
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