CVE-2026-59111: CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection') in Ministry of the Interior (MVČR) eObčanka-Identifikace
Description
CVE-2026-59111 is a critical OS command injection vulnerability in the Ministry of the Interior (MVČR) eObčanka-Identifikace application on MacOS. Prior to version 3.6.0, the application improperly neutralizes special elements in incoming URL parameters, which are passed unsanitized to an AppleScript wrapper. This allows an attacker to register a custom URL scheme and execute parameterized commands. The vulnerability has a high CVSS score of 9.3, indicating severe confidentiality and integrity impact without availability impact. No patch or official remediation guidance is currently available.
CVSS v3.1
Score 9.3critical
Affected software
Ministry of the Interior (MVČR)
eObčanka-Identifikace
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in eObčanka-Identifikace arises from improper neutralization of special elements used in OS commands (CWE-78). Specifically, incoming URL parameters for the custom URL scheme 'czeeopauth://' are concatenated into a compiled AppleScript wrapper without sufficient sanitization. This flaw enables an attacker to perform OS command injection on MacOS systems running affected versions of the software prior to 3.6.0. The vulnerability is remotely exploitable without privileges but requires user interaction (UI:R).
Potential Impact
Successful exploitation could lead to complete compromise of confidentiality and integrity of the affected system by executing arbitrary OS commands via the AppleScript wrapper. There is no impact on availability reported. The vulnerability is critical due to its remote exploitability and high impact on system security.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround is currently documented. Users should monitor for updates from the Ministry of the Interior (MVČR) or Digitální a informační agentura (DIA) and apply patches once available. Until then, avoid processing untrusted URLs with the vulnerable application.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ENISA
- Date Reserved
- 2026-07-02T15:47:36.965Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a959578acd9273b493a5221
Added to database: 08/31/2026, 14:53:44 UTC
Last enriched: 09/07/2026, 15:41:47 UTC
Last updated: 10/15/2026, 18:48:21 UTC
Views: 85
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