{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-4446", "assignerOrgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28", "state": "PUBLISHED", "assignerShortName": "Chrome", "dateReserved": "2026-03-19T20:23:49.946Z", "datePublished": "2026-03-20T01:34:47.750Z", "dateUpdated": "2026-03-21T04:01:21.007Z"}, "containers": {"cna": {"affected": [{"vendor": "Google", "product": "Chrome", "versions": [{"version": "146.0.7680.153", "status": "affected", "lessThan": "146.0.7680.153", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Use after free in WebRTC in Google Chrome prior to 146.0.7680.153 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Use after free", "cweId": "CWE-416"}]}], "providerMetadata": {"orgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28", "shortName": "Chrome", "dateUpdated": "2026-03-20T01:34:47.750Z"}, "references": [{"url": "https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_18.html"}, {"url": "https://issues.chromium.org/issues/486421954"}]}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-03-20T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-4446"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-21T04:01:21.007Z"}}]}}

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{"bugzilla": {"description": "chromium-browser: Use after free in WebRTC", "id": "2449405", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2449405"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["An use after free flaw was found in the WebRTC component of the Chromium browser.\nUpstream bug(s):\nhttps://code.google.com/p/chromium/issues/detail?id=486421954"], "name": "CVE-2026-4446", "public_date": "2026-03-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-4446\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-4446\nhttps://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_18.html\nhttps://issues.chromium.org/issues/486421954"], "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": "2026-03-20T20:24:59.075343+00:00", "value": {"mitigation_remediation": ["Update Google Chrome to version 146.0.7680.153 or later", "Disable WebRTC in the browser settings or via an extension if an update is delayed", "Verify the update by checking the browser version in the Help menu", "Monitor official security advisories for any further related updates"], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "Chrome users running any build prior to version 146.0.7680.153 on macOS, Linux, or Windows are affected. The issue is tied to the Chrome binary distributed by Google, regardless of the operating system. No other browsers or products are listed as impacted.", "description_and_impact": "The vulnerability is a use\u2011after\u2011free condition in the WebRTC component of Google Chrome that can lead to heap corruption when a browser processes a specially constructed HTML page. This flaw maps to CWE\u2011416 and could enable an attacker to tamper with memory, potentially allowing remote code execution. The assessment notes that the impact is considered high, with a CVSS score of 8.8.", "risk_and_exploitability": "Because the flaw requires delivering a crafted HTML page, the attack vector is remote via the user\u2019s browser. The EPSS score indicates a low probability of exploitation in the wild, and the vulnerability is not in the CISA Known Exploited Vulnerabilities list. However, the high CVSS severity means that once compromised, an attacker could gain code execution within the browser process, posing a significant threat to confidentiality and integrity if the user visits malicious sites."}}}}, "created": "2026-03-20T08:53:29.908380+00:00", "updated": "2026-03-25T14:10:00.304975+00:00", "vendors": ["google", "google$PRODUCT$chrome"]}