CVE-2026-107735

medium

Description

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/security/advisories/GHSA-crhm-w5qr-wjj4

https://github.com/sumatrapdfreader/sumatrapdf/commit/f72948b59405d3ddba527789898050ef411d0bb8

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-95410

Details

Source: Mitre, NVD

Published: 2026-10-08

Updated: 2026-10-09

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Severity: Medium

CVSS v4

Base Score: 5.4

Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00172