CVE-2026-33875

CRITICAL

9.3

Description

Gematik Authenticator securely authenticates users for login to digital health applications. Versions prior to 4.16.0 are vulnerable to authentication flow hijacking, potentially allowing attackers to authenticate with the identities of victim users who click on a malicious deep link. Update Gematik Authenticator to version 4.16.0 or greater to receive a patch. There are no known workarounds.

CVE Details

CVSS v3.1 Score9.3

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published3/27/2026

Last Modified4/3/2026

Sourcenvd

Honeypot Sightings0

Affected Products

gematik:authenticator

Weaknesses (CWE)

CWE-940

References

https://github.com/gematik/app-Authenticator/security/advisories/GHSA-qg87-cf56-2rmr(security-advisories@github.com)

https://www.machinespirits.com/advisory/f41e56/(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.