CVE-2026-120930

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{"bugzilla": {"description": "chromium-browser: Incorrect authorization in Blink", "id": "2566520", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2566520"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-863", "details": ["Incorrect authorization in Blink in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: High)", "An incorrect authorization flaw was found in the Blink component of the Chromium browser.\nUpstream bug(s):\nhttps://issues.chromium.org/issues/515948871"], "name": "CVE-2026-120930", "public_date": "2026-11-03T21:20:22Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-120930\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-120930\nhttps://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_02018666648.html\nhttps://issues.chromium.org/issues/515948871"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.", "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,156.0.8078.47)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Chrome", "source": "cna", "vendor": "Google"}, "product": "chrome", "vendor": "google"}], "created": "2026-11-04T01:00:06.914983+00:00", "title": "Web\u2011origin policy bypass due to Blink authorization flaw in Chrome", "updated": "2026-11-04T17:45:07.209143+00:00", "vendors": ["google", "google$PRODUCT$chrome"]}