CVE-2026-46529Public exploit

Single-click code execution via unquoted PDF destination

Published Jun 10, 2026 · Updated Jun 10, 2026

Argument injection in MATE Desktop Atril before 1.26.3 and 1.27.0 through 1.28.3 allows remote attackers to execute code via a malicious PDF link. The ev_spawn function in shell/ev-application.c inserts attacker-controlled /GoToR destination fields into a command line without shell quoting, so GLib splits a smuggled --gtk-module option into the spawned process arguments. A user must open the PDF and click its link; GTK then loads an attacker-supplied PDF/ELF polyglot as a module and runs its constructor with the user's privileges.

CVSS severity8.4
High
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Argument injection in MATE Desktop Atril before 1.26.3 and 1.27.0 through 1.28.3 allows remote attackers to execute code via a malicious PDF link. The ev_spawn function in shell/ev-application.c inserts attacker-controlled /GoToR destination fields into a command line without shell quoting, so GLib splits a smuggled --gtk-module option into the spawned process arguments. A user must open the PDF and click its link; GTK then loads an attacker-supplied PDF/ELF polyglot as a module and runs its constructor with the user's privileges.

The record

CVE
CVE-2026-46529
Published
Jun 10, 2026
Updated
Jun 10, 2026
Vendor
MATE Desktop
Product
Atril
Classifications
CWE-88, CWE-77, T1203, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.26.3
  2. Affected versionversion=>= 1.27.0, < 1.28.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

MATE Desktop · Atrilversion=< 1.26.3; version=>= 1.27.0, < 1.28.4

Published CVSS scores

8.4GitHub, Inc.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
7.8Red HatCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-88Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1203Exploitation for Client Execution
T1204.002User Execution: Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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