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{"bugzilla": {"description": "chromium-browser: Use after free in V8", "id": "2456739", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2456739"}, "csaw": false, "cvss3": {"cvss3_base_score": "9.6", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["An use after free flaw was found in the V8 component of the Chromium browser.\nUpstream bug(s):\nhttps://code.google.com/p/chromium/issues/detail?id=486927780"], "name": "CVE-2026-5861", "public_date": "2026-04-07T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-5861\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-5861\nhttps://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html\nhttps://issues.chromium.org/issues/486927780"], "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": "[147.0.7727.55,147.0.7727.55)"}}], "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": "2026-04-13T18:44:29.501311+00:00", "value": {"mitigation_remediation": ["Upgrade Google Chrome to version 147.0.7727.55 or later"], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "Google Chrome running on Windows, macOS, and Linux is impacted, with all releases preceding version 147.0.7727.55 vulnerable. The flaw is not limited to a specific component of the OS but manifests in the Chrome rendering engine across all supported platforms.", "description_and_impact": "This vulnerability is a use\u2011after\u2011free flaw in the V8 JavaScript engine used by Google Chrome versions prior to 147.0.7727.55. The flaw allows an attacker to trigger an arbitrary code execution inside the browser\u2019s sandbox through a specially crafted HTML page. The weakness is identified as CWE\u2011416 and CWE\u2011825, reflecting a memory corruption issue that can be exploited to break sandbox isolation and execute code with the privileges of the browser process.", "risk_and_exploitability": "The CVSS score of 8.8 indicates high severity, while the EPSS score of less than 1% suggests low current exploitation likelihood. The flaw is not listed in the CISA KEV catalog. Based on the description, the likely attack vector involves a remote attacker delivering a malicious HTML page that a user opens in a vulnerable Chrome instance, enabling code execution within the browser sandbox."}}}}, "created": "2026-04-09T08:17:41.487700+00:00", "updated": "2026-04-14T16:38:08.518787+00:00", "vendors": ["google", "google$PRODUCT$chrome"]}