{"schema":"threatline.record/2","record":{"id":"CVE-2026-107735","aliases":["GHSA-crhm-w5qr-wjj4"],"summary":"SumatraPDF: `sumatrapdfrestrict.ini` never revokes any permission (fail-open policy initialization)","details":"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.","categories":["Unclassified"],"product":"sumatrapdf","vendor":"sumatrapdfreader","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-107735","source_modified_at":"2026-10-09T15:24:14.433Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"sumatrapdf","vendor":"sumatrapdfreader","versions":[{"status":"affected","version":"<= 3.6.1"}],"defaultStatus":null},{"source":"GitHub Advisory Database","source_url":"https://github.com/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-crhm-w5qr-wjj4","source_modified_at":"2026-10-08T22:25:19Z","fetched_at":"2026-10-24T00:31:04.721601Z","package":{"name":"sumatrapdf","ecosystem":null},"range":"3.6.1"}],"fixed_versions":[],"cvss":5.4,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00113,"percentile":0.01369,"score_date":"2026-10-23"},"published_at":"2026-10-08T22:26:00.405Z","modified_at":"2026-10-09T15:24:14.433Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-107735","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-09T15:24:14.433Z"},{"source":"GitHub Advisory Database","url":"https://github.com/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-crhm-w5qr-wjj4","fetched_at":"2026-10-24T00:31:04.721601Z","source_modified_at":"2026-10-08T22:25:19Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-107735","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","GitHub Advisory Database","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-crhm-w5qr-wjj4","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/sumatrapdfreader/sumatrapdf/commit/f72948b59405d3ddba527789898050ef411d0bb8","tags":["x_refsource_MISC"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"total","assessed_at":"2026-10-09T15:23:33.802851Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-09T15:24:14.433Z","content_hash":"3137bc138553fa9679ea4868a0c5eefc82d3a75a3bf4b8de7faa3fc7c79792a6"}}