{"id":"CVE-2026-57501","state":"PUBLISHED","title":"Zen: Context-menu \"Open link in glance\" / \"Split link in new tab\" loads a page-controlled link with the System principal, bypassing the web-content scheme restriction","description":"Zen is a firefox-based browser. Prior to 1.21.5b, Zen's glance and split-view context-menu actions, Open link in glance and Split link in new tab, load a page-controlled link URL with the System principal instead of the originating page's principal, allowing a malicious web page to place a link to a file URL that can load with System privileges when opened through either context-menu item and bypass the content-to-file security check that blocks an ordinary click. This issue is fixed in version 1.21.5b.","publishedAt":"2026-07-09T22:27:34.962Z","updatedAt":"2026-07-10T20:59:23.914Z","severity":{"score":0,"label":"None","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["zen-browser desktop"],"affected":[{"vendor":"zen-browser","product":"desktop","versions":[{"version":"< 1.21.5b","status":"affected"}]}],"references":["https://github.com/zen-browser/desktop/security/advisories/GHSA-vpvg-hp3v-rm5q","https://github.com/zen-browser/desktop/commit/44f7616238208200547c7df500d945752d7b6379","https://github.com/zen-browser/desktop/releases/tag/1.21.5b"],"weaknesses":["CWE-266"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/57xxx/CVE-2026-57501.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-57501","state":"PUBLISHED","datePublished":"2026-07-09T22:27:34.962Z","dateUpdated":"2026-07-10T20:59:23.914Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-24T14:53:40.112Z"},"containers":{"cna":{"title":"Zen: Context-menu \"Open link in glance\" / \"Split link in new tab\" loads a page-controlled link with the System principal, bypassing the web-content scheme restriction","descriptions":[{"lang":"en","value":"Zen is a firefox-based browser. Prior to 1.21.5b, Zen's glance and split-view context-menu actions, Open link in glance and Split link in new tab, load a page-controlled link URL with the System principal instead of the originating page's principal, allowing a malicious web page to place a link to a file URL that can load with System privileges when opened through either context-menu item and bypass the content-to-file security check that blocks an ordinary click. This issue is fixed in version 1.21.5b."}],"affected":[{"vendor":"zen-browser","product":"desktop","versions":[{"version":"< 1.21.5b","status":"affected"}]}],"references":[{"url":"https://github.com/zen-browser/desktop/security/advisories/GHSA-vpvg-hp3v-rm5q","name":"https://github.com/zen-browser/desktop/security/advisories/GHSA-vpvg-hp3v-rm5q","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/zen-browser/desktop/commit/44f7616238208200547c7df500d945752d7b6379","name":"https://github.com/zen-browser/desktop/commit/44f7616238208200547c7df500d945752d7b6379","tags":["x_refsource_MISC"]},{"url":"https://github.com/zen-browser/desktop/releases/tag/1.21.5b","name":"https://github.com/zen-browser/desktop/releases/tag/1.21.5b","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":0,"baseSeverity":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-266","lang":"en","description":"CWE-266: Incorrect Privilege Assignment","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-09T22:27:34.962Z"},"source":{"advisory":"GHSA-vpvg-hp3v-rm5q","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-10T20:46:27.753145Z","id":"CVE-2026-57501","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-10T20:59:23.914Z"}}]}}}