Improper Neutralization of Argument Delimiters in a Command in atril - CVE-2026-46529
Published: May 22, 2026 / Updated: May 22, 2026
Vulnerability identifier: #VU132128
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2026-46529
CWE-ID: CWE-88
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: MATE Desktop
Affected software:
atril
atril
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to improper neutralization of argument delimiters in a command in ev_spawn() in shell/ev-application.c when processing a crafted /GoToR action in a PDF document. A remote attacker can trick the victim into clicking a crafted link in a malicious PDF to execute arbitrary code.
User interaction is required to click a link inside the PDF document, and the issue can be delivered as a single polyglot file that is both a valid PDF and a valid ELF shared library.
How to mitigate CVE-2026-46529
Install security update from vendor's website.