CVE-2026-107732 Details
Description
SumatraPDF is a multi-format reader for Windows. In 3.6.1 and earlier, untrusted document paths and PDF link targets are interpolated into notification text that ParseTip() interprets as trusted tip markup. When a user clicks an injected link, ExecuteTipLink() dispatches its CmdExec command and can execute an attacker-selected local program in the user's context. No broader impact is claimed beyond the advisory-supported conditions. No fixed version is available as of this review.
A command injection vulnerability has been identified in SumatraPDF versions through 3.6.1. This issue arises because untrusted document paths and PDF link targets are incorporated into notification messages, where they are misinterpreted as trusted markup. When a user clicks on an injected link, the application executes a command that can run a local program chosen by the attacker, all within the user's context. The vulnerability can be triggered by opening a crafted PDF or document that prompts an error notification, which then executes the malicious command.
Users can update to the latest version of SumatraPDF, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 8, 2026CISA-ADP
Assessed Oct 13, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/sumatrapdfreader/sumatrapdf/commit/8b680387ed69e3504ef296e09d6e032f81076af8 | [email protected] | Source CodeVendor |
| https://github.com/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-2wv2-qm2f-vmxh | [email protected] | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-94 | Improper Control of Generation of Code ('Code Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| SumatraPDF | 3.6.1 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 13, 2026 | CVE Modified | CISA-ADP |
| Oct 8, 2026 | New CVE Received | [email protected] |