CVE-2026-12034

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{"bugzilla": {"description": "chromium-browser: chromium-browser: Insufficient validation of untrusted input\u00a0 Linux Toolkit Theming", "id": "2488060", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2488060"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-1289", "details": ["Insufficient validation of untrusted input in Linux Toolkit Theming in Google Chrome on Linux prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a malicious file. (Chromium security severity: High)", "The following flaw was identified in the Chromium browser: Insufficient validation of untrusted input\u00a0 Linux Toolkit Theming.\nUpstream bug(s):\nhttps://code.google.com/p/chromium/issues/detail?id=519258799"], "name": "CVE-2026-12034", "public_date": "2026-06-11T20:48:14Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-12034\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-12034\nhttps://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01962725236.html\nhttps://issues.chromium.org/issues/519258799"], "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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