Is this vulnerability remotely exploitable over the network?

It is indirectly remote: an attacker typically must deliver a malicious file to the victim and rely on the victim opening it locally. The attacker does not need direct network access to the Authenticator service itself, but the attack can originate remotely (for example, via email or web download).

What level of access does an attacker need to exploit this issue?

The attacker needs the ability to supply a crafted file to the user and convince them to open it with the macOS Gematik Authenticator. No pre-existing access to the victim's system or prior authentication within the Authenticator is inherently required.

What is the safest general fix pattern for this vulnerability class?

The safest pattern is to remove any reliance on shell or command-line construction from untrusted data. Replace dynamic command generation with fixed, parameterized calls to system APIs, and ensure all input from files is validated against strict, narrowly defined expectations.

Severity:

HIGH RISK

(7.8)

OS Command Injection (CWE-78) in Gematik Authenticator for macOS via Malicious File

CVE-2026-33874

Published:

Mar 27, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

OS Command Injection

CWE:

CWE-78

Impact:

Remote Code Execution on Client System

Severity:

HIGH RISK

(7.8)

CVSS Version:

3.1

Vulnerability Type

Category:

OS Command Injection

CWE:

CWE-78

Impact:

Remote Code Execution on Client System

Severity:

HIGH RISK

(7.8)

CVSS Version:

3.1

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OS Command Injection (CWE-78) in Gematik Authenticator for macOS via Malicious File

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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