جزئیات آسیب‌پذیری
CVE-2026-46529
PDF /GoToR action argv injection enables single-click RCE via --gtk-module dlopen
شرح رسمی (انگلیسی)
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.
امتیازهای CVSS
| امتیاز | نسخه | منبع | بردار |
|---|---|---|---|
| 8.4بالا | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | 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 |
| 7.8بالا | 3.1 | CVEProject cvelistV5 (CNA) (redhat-SADP) | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
محصولات آسیب‌پذیر
| فروشنده | محصول | نسخه‌ها | منبع |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 6 | همه | CVEProject cvelistV5 (CNA) |
| mate-desktop | atril | < 1.26.3 | CVEProject cvelistV5 (CNA) |
| mate-desktop | atril | >= 1.27.0, < 1.28.4 | CVEProject cvelistV5 (CNA) |
منابع و راهنماها
۲۱- https://github.com/mate-desktop/atril/releases/tag/v1.26.3 x_refsource_MISC
- https://github.com/mate-desktop/atril/releases/tag/v1.28.4 x_refsource_MISC
- http://www.openwall.com/lists/oss-security/2026/05/19/34
- http://www.openwall.com/lists/oss-security/2026/05/21/7
- http://www.openwall.com/lists/oss-security/2026/05/22/11
- https://lists.debian.org/debian-lts-announce/2026/05/msg00041.html
- https://lists.debian.org/debian-lts-announce/2026/05/msg00042.html
- https://lists.debian.org/debian-lts-announce/2026/06/msg00021.html
- https://github.com/mate-desktop/atril/security/advisories/GHSA-vgv2-m826-8f6f x_refsource_CONFIRM
- https://access.redhat.com/security/cve/CVE-2026-46529 vdb-entryx_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2487669 issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46529.json x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:41904 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:28998 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:43398 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:46467 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:42692 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:39115 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:33416 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:33169 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:27819 vendor-advisoryx_refsource_REDHAT
اطلاعات
- تاریخ انتشار
- ۱۴۰۵/۰۳/۲۰
- آخرین به‌روزرسانی
- ۱۴۰۵/۰۵/۰۶
- وضعیت
- منتشرشده
- صادرکننده (CNA)
- GitHub_M
پیش‌بینی بهره‌برداری (EPSS)
ارزیابی SSVC (CISA)
- قابل خودکارسازی
- خیر
- وضعیت بهره‌برداری
- اثبات مفهوم
- اثر فنی
- کامل
ضعف‌ها (CWE)
- CWE-88Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
- CWE-829Inclusion of Functionality from Untrusted Control Sphere
- CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')