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CVE

CVE-2026-33875

Authenticator Vulnerable to Authentication Flow Hijack
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CVE

CVE-2026-33875

Authenticator Vulnerable to Authentication Flow Hijack

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.3
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
C
H
U
-

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33875.json, https://github.com/gematik/app-Authenticator/security/advisories/GHSA-qg87-cf56-2rmr, https://nvd.nist.gov/vuln/detail/CVE-2026-33875

Severity

9.3

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
9.3
EPSS Probability
0.0005%
EPSS Percentile
0.1562%
Introduced Version
0
Fix Available
156f785f6fe55f5e770af73f3deb8c214a0315e9

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