{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-4449", "assignerOrgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28", "state": "PUBLISHED", "assignerShortName": "Chrome", "dateReserved": "2026-03-19T20:23:50.609Z", "datePublished": "2026-03-20T01:34:49.580Z", "dateUpdated": "2026-03-20T14:42:47.572Z"}, "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 Blink 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": "2026-03-20T01:34:49.580Z"}, "references": [{"url": "https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_18.html"}, {"url": "https://issues.chromium.org/issues/487117772"}]}, "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": {"id": "CVE-2026-4449", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-03-20T14:34:43.899775Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-20T14:42:47.572Z"}}]}}

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{"bugzilla": {"description": "chromium-browser: Use after free in Blink", "id": "2449397", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2449397"}, "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-1341", "details": ["An use after free flaw was found in the Blink component of the Chromium browser.\nUpstream bug(s):\nhttps://code.google.com/p/chromium/issues/detail?id=487117772"], "name": "CVE-2026-4449", "public_date": "2026-03-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-4449\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-4449\nhttps://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_18.html\nhttps://issues.chromium.org/issues/487117772"], "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": "2026-03-20T13:51:04.965993+00:00", "value": {"mitigation_remediation": ["Update Google Chrome to version 146.0.7680.153 or later (recommended by Google Chrome release notes)"], "summary": {"action": "Patch", "impact": "Potential Memory Corruption"}, "threat_synthesis": {"affected_systems": "All users running Google Chrome before version 146.0.7680.153 are potentially affected. The issue was addressed in Chrome 146.0.7680.153, which removes the vulnerable Blink code path. No other vendors or products are listed as impacted.", "description_and_impact": "Use\u2011after\u2011free in the Blink rendering engine of Google Chrome allows a remote attacker to deliver a specially crafted HTML page that can trigger heap corruption during page rendering. The vulnerability is classified as high severity by Chromium security and is identified by CWE\u20111341 (Use\u2011After\u2011Free) and CWE\u2011416 (Use of Freed Pointer Is Not Protected). The CVE description does not state a confirmed outcome, but heap corruption can lead to undefined behavior, including possible denial of service or other memory corruption effects.", "risk_and_exploitability": "The flaw carries a high CVSS score of 9.6, indicating a severe potential impact if successfully exploited. EPSS data is not available, and the vulnerability is not currently listed in the CISA KEV catalog. The most likely attack vector is a remote attacker delivering a malicious HTML page to a user who then visits the page, triggering the use\u2011after\u2011free during rendering. Exploitation requires a crafted webpage and a user\u2019s interaction with it; no public exploit has been reported, so the risk is high primarily due to the severity rating rather than proven exploit availability."}}}}, "created": "2026-03-20T08:53:27.357460+00:00", "updated": "2026-03-20T14:14:26.602015+00:00", "vendors": ["google", "google$PRODUCT$chrome"]}