Security readout for executives and security teams
Plain-English summary
CVE-2026-33874 is a high-severity remote code execution issue affecting the macOS version of gematik Authenticator from version 4.12.0 up to, but not including, 4.16.0. The reported trigger is victim interaction: opening a malicious file. The provided bundle states that upgrading to version 4.16.0 or later patches the issue and that there are no known workarounds.
Executive priority
High priority for environments using gematik Authenticator on macOS. Remediate affected versions promptly because successful exploitation can result in high confidentiality, integrity, and availability impact, although the provided sources do not confirm active exploitation.
Technical view
The vulnerability affects gematik app-Authenticator on macOS in versions >= 4.12.0 and < 4.16.0. It is classified under CWE-78, with CVSS 3.1 score 7.8 and vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. The CVSS vector indicates local attack vector, low complexity, no privileges required, required user interaction, unchanged scope, and high confidentiality, integrity, and availability impact. The bundle describes the practical trigger as opening a malicious file; it does not provide additional exploit mechanics.
Likely exposure
Organizations or users running the macOS version of gematik Authenticator versions 4.12.0 through 4.15.x are potentially exposed. Exposure is most relevant where users can receive and open untrusted files on systems with the affected Authenticator installed. Non-macOS versions and versions before 4.12.0 or 4.16.0 and later are not identified as affected in the provided bundle.
Exploitation context
Active exploitation is not established by the provided evidence: KEV is false, and the source bundle does not state that exploitation is occurring in the wild. Exploitation requires user interaction by opening a malicious file. No exploit code, payload details, or offensive procedure is included in this assessment.
Researcher notes
Assessment is limited to the CVE source bundle supplied in the prompt. The title says remote code execution, while the CVSS vector is AV:L and UI:R, so this should be communicated as malicious-file-triggered code execution requiring victim interaction. Patch evidence is present for version 4.16.0 or greater. No workaround, active exploitation, broader platform impact, or additional affected product evidence is provided in the bundle.
Mitigation direction
- Update gematik Authenticator on macOS to version 4.16.0 or later.
- Prioritize remediation for macOS endpoints where gematik Authenticator is installed and users handle files from external or untrusted sources.
- Because the bundle states there are no known workarounds, treat upgrade as the primary mitigation.
- If immediate upgrade status is unclear, check official gematik guidance and the GitHub security advisory before relying on compensating controls.
Validation and detection
- Inventory macOS endpoints for gematik Authenticator installations.
- Confirm installed versions and identify any version >= 4.12.0 and < 4.16.0.
- Verify that remediated endpoints are running gematik Authenticator 4.16.0 or later.
- Review endpoint security telemetry for suspicious activity involving Authenticator around the time users opened unexpected or untrusted files, without assuming confirmed compromise solely from version exposure.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-78: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-33874 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/gematik/app-Authenticator/security/advisories/GHSA-mjgm-7hwc-qqcrCVE reference · x_refsource_CONFIRM
- https://www.machinespirits.de/advisory/2e655e/CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.