{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "desktop",
          "vendor": "zen-browser",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.21.5b"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Zen is a firefox-based browser. Prior to 1.21.5b, Zen\u0027s 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\u0027s 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."
        }
      ],
      "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",
              "description": "CWE-266: Incorrect Privilege Assignment",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-09T22:27:34.962Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/zen-browser/desktop/security/advisories/GHSA-vpvg-hp3v-rm5q",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/zen-browser/desktop/security/advisories/GHSA-vpvg-hp3v-rm5q"
        },
        {
          "name": "https://github.com/zen-browser/desktop/commit/44f7616238208200547c7df500d945752d7b6379",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/zen-browser/desktop/commit/44f7616238208200547c7df500d945752d7b6379"
        },
        {
          "name": "https://github.com/zen-browser/desktop/releases/tag/1.21.5b",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/zen-browser/desktop/releases/tag/1.21.5b"
        }
      ],
      "source": {
        "advisory": "GHSA-vpvg-hp3v-rm5q",
        "discovery": "UNKNOWN"
      },
      "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"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-57501",
    "datePublished": "2026-07-09T22:27:34.962Z",
    "dateReserved": "2026-06-24T14:53:40.112Z",
    "dateUpdated": "2026-07-09T22:27:34.962Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-57501\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-07-09T23:17:05.353\",\"lastModified\":\"2026-07-09T23:17:05.353\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Zen is a firefox-based browser. Prior to 1.21.5b, Zen\u0027s 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\u0027s 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\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"zen-browser\",\"product\":\"desktop\",\"versions\":[{\"version\":\"\u003c 1.21.5b\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:N\",\"baseScore\":0.0,\"baseSeverity\":\"NONE\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":0.0}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-266\"}]}],\"references\":[{\"url\":\"https://github.com/zen-browser/desktop/commit/44f7616238208200547c7df500d945752d7b6379\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/zen-browser/desktop/releases/tag/1.21.5b\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/zen-browser/desktop/security/advisories/GHSA-vpvg-hp3v-rm5q\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}