What is CVE-2026-59111?

CVE-2026-59111 is a critical-severity vulnerability in Digitální A Informační Agentura (Dia) Eobčanka-Identifikace, classified under OS Command Injection. CVSS score: 9.3/10. Published 2026-08-31.

How severe is CVE-2026-59111?

Critical severity. CVSS v3 base score is 9.3 out of 10.

RCE in Digitální A Informační Agentura (Dia) Eobčanka-Identifikace

CVE-2026-59111

Improper neutralization of special elements used in an OS command ('OS command injection') vulnerability in Digitální a informační agentura (DIA) eObčanka-Identifikace on MacOS enables an attacker to register a custom URL scheme (czeeopauth://) for parameterized application execution. Prior to version 3.6.0, incoming URL parameters were passed to the compiled AppleScript wrapper using concatenation without sufficient sanitization.

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N.

Affected products

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

a6d3dc9e-0591-4a13-bce7-0f5b31ff6158 (vendor-advisory)

Frequently asked questions

What is CVE-2026-59111?: CVE-2026-59111 is a critical-severity vulnerability in Digitální A Informační Agentura (Dia) Eobčanka-Identifikace, classified under OS Command Injection. CVSS score: 9.3/10. Published 2026-08-31.
How severe is CVE-2026-59111?: Critical severity. CVSS v3 base score is 9.3 out of 10.