CVE-2026-33875CWE-940

Authenticator Vulnerable to Authentication Flow Hijack

Critical · published March 27, 2026

CVSS v3.1
9.3
EPSS
0%
Percentile
39.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.3 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00466 · 39.3th percentile
Weakness
CWE-940 · Improper Verification of Source of a Communication Channel
Published
2026-03-27T20:25Z
EPSS history
Timeline
  • 27 MAR 20:25Z
    Authenticator Vulnerable to Authentication Flow Hijack
    cvelistv5