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Medium

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

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-107735

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-107735

sumatrapdf

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "sumatrapdfreader",
    "product": "sumatrapdf",
    "versions": [
      {
        "status": "affected",
        "version": "<= 3.6.1"
      }
    ]
  }
]
Related CVEs
CVE-2026-107735

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#16323 · Revision 1
Added to Heist Feed
Publisher date
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