CVE-2026-107732: Code Injection

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.

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Weakness Type (CWE)

CWE-94 CWE-94

References

Other References

https://github.com/sumatrapdfreader/sumatrapdf/commit/8b680387ed69e3504ef296e09d6e032f81076af8 https://github.com/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-2wv2-qm2f-vmxh

Frequently Asked Questions

What is CVE-2026-107732? +

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.

How do I check if I'm vulnerable to CVE-2026-107732? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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