MEDIUM 5.4 NVD
CVE-2026-107735
SumatraPDF is a multi-format reader for Windows. In 3.6.1 and earlier, InitializePolicies() starts the sumatrapdfrestrict.ini path with gPolicyRestrictions set
SumatraPDF is a multi-format reader for Windows. In 3.6.1 and earlier, InitializePolicies() starts the sumatrapdfrestrict.ini path with gPolicyRestrictions set to Perm::All and only ORs permission bits, so the INI file never revokes permissions. Deploying SumatraPDF with this INI file, including a malformed file or zero-valued permission settings, can silently bypass configured disk, network, printing, registry, clipboard, preference, and fullscreen restrictions. The -restrict command-line path works correctly and is not affected. No fixed version is available as of this review.
References
- https://github.com/sumatrapdfreader/sumatrapdf/commit/f72948b59405d3ddba527789898050ef411d
- https://github.com/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-crhm-w5qr-wjj4
- https://github.com/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-crhm-w5qr-wjj4
This medium severity vulnerability with a CVSS score of 5.4 was published on 2026-10-08 via NVD.
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