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OpenAdvisories
High · 8.4 CVE-2026-107732 EUVD-2026-95407

SumatraPDF: Markup/command-link injection into UI notification text

Published Oct 8, 2026 · Updated Oct 13, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
sumatrapdfreader sumatrapdf <= 3.6.1 —

References