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 to Perm::All and only ORs permission bits, so the INI file never revokes permissions. Deploying SumatraPDF with this INI file, including a...

CVE-2026-107735 SumatraPDF: `sumatrapdfrestrict.ini` never revokes any permission (fail-open policy initialization)

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...

CVE-2026-107735 SumatraPDF: `sumatrapdfrestrict.ini` never revokes any permission (fail-open policy initialization)

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...

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 to Perm::All and only ORs permission bits, so the INI file never revokes permissions. Deploying SumatraPDF with this INI file, including a...

EUVD-2026-95410

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...

CVE-2026-107735

The multi-format reader SumatraPDF (version 3.6.1 and earlier) on Windows contains a fail-open policy initialization flaw in the InitializePolicies() function. The application initializes the sumatrapdfrestrict.ini path with gPolicyRestrictions set to Perm::All and only performs bitwise OR operat...

PT-2026-108303

Name of the Vulnerable Software and Affected Versions SumatraPDF versions prior to 3.6.2 Description The InitializePolicies function incorrectly handles the sumatrapdfrestrict.ini path by initializing gPolicyRestrictions to Perm::All and only using OR operations for permission bits. This logic...

CVE-2026-107735: Not Failing Securely

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...