CVE Explorer

CVE-2026-57501

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

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:699c58b1e0c20de3ba274793a5deef241b6a23eeca393ce6ae58dc14f2aee8eb

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"desktop","vendor":"zen-browser","versions":[{"status":"affected","version":"< 1.21.5b"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:1ef17eab5a1274333ad22ecae243a740599b9a4a6a42b1926acd8b03048fdfef · sha256:a1b7e41ff7b2b6bd… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"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"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:1ef17eab5a1274333ad22ecae243a740599b9a4a6a42b1926acd8b03048fdfef · sha256:a1b7e41ff7b2b6bd… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-266","description":"CWE-266: Incorrect Privilege Assignment","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:1ef17eab5a1274333ad22ecae243a740599b9a4a6a42b1926acd8b03048fdfef · sha256:a1b7e41ff7b2b6bd… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions

{"name":"https://github.com/zen-browser/desktop/commit/44f7616238208200547c7df500d945752d7b6379","tags":["x_refsource_MISC"],"url":"https://github.com/zen-browser/desktop/commit/44f7616238208200547c7df500d945752d7b6379"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1ef17eab5a1274333ad22ecae243a740599b9a4a6a42b1926acd8b03048fdfef · sha256:a1b7e41ff7b2b6bd… · /containers/cna/references/1

{"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"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1ef17eab5a1274333ad22ecae243a740599b9a4a6a42b1926acd8b03048fdfef · sha256:a1b7e41ff7b2b6bd… · /containers/cna/references/2

{"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"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1ef17eab5a1274333ad22ecae243a740599b9a4a6a42b1926acd8b03048fdfef · sha256:a1b7e41ff7b2b6bd… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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