CVE-2026-9986

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{"bugzilla": {"description": "chromium-browser: Insufficient validation of untrusted input in OptimizationGuide", "id": "2482993", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482993"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.7", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N", "status": "draft"}, "cwe": "CWE-1289", "details": ["An insufficient validation of untrusted input flaw was found in the OptimizationGuide component of the Chromium browser.\nUpstream bug(s):\nhttps://code.google.com/p/chromium/issues/detail?id=513028160"], "name": "CVE-2026-9986", "public_date": "2026-05-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-9986\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-9986\nhttps://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html\nhttps://issues.chromium.org/issues/513028160"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.", "threat_severity": "Important"}

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