CVE-2026-46529

Atril Document Viewer is the default document reader of the MATE desktop environment for Linux. A single-click remote code execution vulnerability in versions prior to 1.26.3 and 1.28.4 allows an attacker to achieve arbitrary code execution as the user by tricking them into clicking a link inside a malicious PDF document. The PDF can be packaged as a polyglot file that is simultaneously a valid PDF and a valid ELF shared library, making the attack a single-file, single-click, configuration-independent RCE on stock atril installations. The root cause is `shell/ev-application.c:ev_spawn`, which builds a command line from attacker-controlled PDF link-destination fields without applying `g_shell_quote`. The cmdline is then handed to `g_app_info_create_from_commandline`, which shell-parses it back into argv — splitting any embedded `--gtk-module=PATH` into a separate argv element. GTK then `dlopen()`s the path during init, running any `__attribute__((constructor))` it finds. Versions 1.26.3 and 1.28.4 contain a patch for the issue. This is the same defect class as CVE-2023-51698 (CBT `--checkpoint-action` injection in `comics-document.c`, fixed in 1.6.2) but in a different code path (`shell/ev-application.c`) that the original patch did not touch.
CVSS

No CVSS.

Configurations

No configuration.

History

12 Jun 2026, 14:16

Type Values Removed Values Added
References () https://github.com/mate-desktop/atril/security/advisories/GHSA-vgv2-m826-8f6f - () https://github.com/mate-desktop/atril/security/advisories/GHSA-vgv2-m826-8f6f -

10 Jun 2026, 20:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-06-10 20:17

Updated : 2026-06-12 14:16


NVD link : CVE-2026-46529

Mitre link : CVE-2026-46529

CVE.ORG link : CVE-2026-46529


JSON object : View

Products Affected

No product.

CWE
CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

CWE-88

Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

CWE-829

Inclusion of Functionality from Untrusted Control Sphere