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{"bugzilla": {"description": "chromium-browser: Out of bounds read in Blink", "id": "2449381", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2449381"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-125", "details": ["An out of bounds read flaw was found in the Blink component of the Chromium browser.\nUpstream bug(s):\nhttps://code.google.com/p/chromium/issues/detail?id=491080830"], "name": "CVE-2026-4462", "public_date": "2026-03-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-4462\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-4462\nhttps://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_18.html\nhttps://issues.chromium.org/issues/491080830"], "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": "[146.0.7680.153,146.0.7680.153)"}}], "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": "2026-03-20T20:05:28.818361+00:00", "value": {"mitigation_remediation": ["Update Chrome to version 146.0.7680.153 or newer.", "Enable automatic browser updates to receive future security patches.", "If an update cannot be applied immediately, avoid browsing untrusted websites or temporarily disable the browser."], "summary": {"action": "Patch immediately", "impact": "Remote memory disclosure via out-of-bounds read"}, "threat_synthesis": {"affected_systems": "Google Chrome browsers on Windows, macOS, and Linux are affected. The issue exists in all Chrome builds dated before 146.0.7680.153, regardless of the operating system.", "description_and_impact": "A flaw in the Blink rendering engine of Google Chrome releases prior to 146.0.7680.153 allows an attacker to read memory locations beyond the bounds of allocated buffers when a specially constructed HTML page is rendered. This out\u2011of\u2011bounds memory read could expose sensitive data stored in the browser process, corresponding to CWE\u2011125. The vulnerability is classified as high severity by the Chromium security team.", "risk_and_exploitability": "The CVSS v3.1 score is 8.8, indicating a high impact if exploited. The EPSS score of less than 1% suggests that attacks using this flaw are currently infrequent, yet the vulnerability is not listed in the CISA KEV catalog. An attacker could exploit it by hosting a malicious web page that the victim opens, triggering the out\u2011of\u2011bounds read."}}}}, "created": "2026-03-20T08:53:16.073204+00:00", "updated": "2026-03-25T14:09:44.001571+00:00", "vendors": ["google", "google$PRODUCT$chrome"]}