Detections
Analytics
Linux Distros Unpatched Vulnerability : CVE-2026-46529
high Nessus Plugin ID 315531
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Synopsis
The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.Description
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.- 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. (CVE-2026-46529)
Note that Nessus relies on the presence of the package as reported by the vendor.
Solution
There is no known solution at this time.See Also
https://access.redhat.com/security/cve/cve-2026-46529
Plugin Details
Severity: High
ID: 315531
File Name: unpatched_CVE_2026_46529.nasl
Version: 1.15
Type: Local
Agent: unix
Family: Misc.
Published: 5/19/2026
Updated: 6/24/2026
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.4
CVSS v2
Risk Factor: High
Base Score: 8.5
Temporal Score: 7.7
Vector: CVSS2#AV:N/AC:M/Au:S/C:C/I:C/A:C
CVSS Score Source: CVE-2026-46529
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 7.4
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:U/RC:C
CVSS v4
Risk Factor: High
Base Score: 8.4
Threat Score: 7
Threat Vector: CVSS:4.0/E:P
Vector: 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
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:evince-dvi, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:redhat:enterprise_linux:6, cpe:/o:canonical:ubuntu_linux:25.10, p-cpe:/a:canonical:ubuntu_linux:evince, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:centos:centos:evince-nautilus, p-cpe:/a:redhat:enterprise_linux:evince-devel, p-cpe:/a:centos:centos:evince-libs, p-cpe:/a:redhat:enterprise_linux:evince-libs, p-cpe:/a:redhat:enterprise_linux:evince-browser-plugin, p-cpe:/a:redhat:enterprise_linux:evince-nautilus, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:canonical:ubuntu_linux:atril, p-cpe:/a:canonical:ubuntu_linux:evince-gtk3, p-cpe:/a:debian:debian_linux:papers, p-cpe:/a:centos:centos:evince-dvi, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, cpe:/o:centos:centos:7, p-cpe:/a:centos:centos:evince-browser-plugin, p-cpe:/a:centos:centos:evince-devel, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:redhat:enterprise_linux:7, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:redhat:enterprise_linux:evince, p-cpe:/a:centos:centos:evince
Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier
Exploit Available: true
Exploit Ease: Exploits are available
Reference Information
CVE: CVE-2026-46529