CVE-2026-4451

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{"bugzilla": {"description": "chromium-browser: Insufficient validation of untrusted input in Navigation", "id": "2449385", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2449385"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.2", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-1286", "details": ["An insufficient validation of untrusted input flaw was found in the Navigation component of the Chromium browser.\nUpstream bug(s):\nhttps://code.google.com/p/chromium/issues/detail?id=487768779"], "name": "CVE-2026-4451", "public_date": "2026-03-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-4451\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-4451\nhttps://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_18.html\nhttps://issues.chromium.org/issues/487768779"], "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": "[0,146.0.7680.153)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Chrome", "source": "cna", "vendor": "Google"}, "product": "chrome", "vendor": "google"}], "analysis": {"en": {"generated_at": "2026-03-20T19:23:16.669643+00:00", "value": {"mitigation_remediation": ["Upgrade Google Chrome to version 146.0.7680.153 or later."], "summary": {"action": "Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "Google Chrome browsers prior to version 146.0.7680.153 on all supported operating systems (Windows, macOS, Linux).", "description_and_impact": "Insufficient input validation in Chrome\u2019s navigation handling allows a remote attacker who has already compromised the renderer process to escape the browser\u2019s sandbox by loading a specially crafted HTML page. The flaw is characterized by input validation weaknesses (CWE\u20111286 and CWE\u201120) and can lead to unauthorized execution of code with system\u2011level privileges. The official remark labels the issue as Chromium security severity High.", "risk_and_exploitability": "The CVSS base score of 8.8 indicates a high likelihood of severe exploitation, while the EPSS score of less than 1% suggests that active exploitation is currently unlikely but possible. The vulnerability is not listed in CISA\u2019s Known Exploited Vulnerabilities catalog, and it requires a remote attacker to have already gained control of the renderer process, typically through malicious web content. Once inside the renderer, the attacker can escape the sandbox and execute arbitrary code on the host system."}}}}, "created": "2026-03-20T08:53:25.660453+00:00", "updated": "2026-03-25T14:09:54.554059+00:00", "vendors": ["google", "google$PRODUCT$chrome"]}