High 8.4Published Oct 8, 2026

CVE-2026-107732SumatraPDF: Markup/command-link injection into UI notification text

Updated under an hour ago (2026-10-19 11:40 UTC)

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It affects sumatrapdfreader sumatrapdf. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.13%, higher than 2% of scored CVEs.

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Every CVE for sumatrapdfreader sumatrapdf

Exploited in the last 30 days

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.

CVSS: 8.4 HIGH (v4.0, CNA)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
Weakness (CWE): CWE-94
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.13% (percentile 2)
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 13, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

sumatrapdfreader sumatrapdf sumatrapdfreader:sumatrapdf (from the name)	through 3.6.1	CNA record

References

https://github.com/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-2wv2-qm2f-vmxhx-refsource-confirm
https://github.com/sumatrapdfreader/sumatrapdf/commit/8b680387ed69e3504ef296e09d6e032f81076af8x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.