{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-5866", "assignerOrgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28", "state": "PUBLISHED", "assignerShortName": "Chrome", "dateReserved": "2026-04-08T19:34:33.573Z", "datePublished": "2026-04-08T21:20:42.797Z", "dateUpdated": "2026-04-08T21:20:42.797Z"}, "containers": {"cna": {"affected": [{"vendor": "Google", "product": "Chrome", "versions": [{"version": "147.0.7727.55", "status": "affected", "lessThan": "147.0.7727.55", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Use after free in Media in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to execute arbitrary code inside a sandbox 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": "2026-04-08T21:20:42.797Z"}, "references": [{"url": "https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html"}, {"url": "https://issues.chromium.org/issues/492218537"}]}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Use after free in Media in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)"}], "id": "CVE-2026-5866", "lastModified": "2026-04-08T22:16:26.130", "metrics": {}, "published": "2026-04-08T22:16:26.130", "references": [{"source": "chrome-cve-admin@google.com", "url": "https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html"}, {"source": "chrome-cve-admin@google.com", "url": "https://issues.chromium.org/issues/492218537"}], "sourceIdentifier": "chrome-cve-admin@google.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "chrome-cve-admin@google.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,147.0.7727.55)"}}], "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": "2026-04-08T23:36:36.891560+00:00", "value": {"mitigation_remediation": ["Update Chrome to version 147.0.7727.55 or later on all affected devices."], "summary": {"action": "Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "The flaw applies to all desktop editions of Google Chrome released before version\u202f147.0.7727.55. Any user running an affected build and loading a malicious webpage is at risk.", "description_and_impact": "A use\u2011after\u2011free vulnerability exists in Chrome\u2019s Media component. The flaw allows a remote attacker who delivers a specially crafted HTML page to execute arbitrary code inside the browser\u2019s sandbox. The vulnerability is identified as CWE\u2011416 and can lead to code execution with sandboxed privileges.", "risk_and_exploitability": "Chromium reports this issue as high severity. An explicit CVSS score is not provided, and no EPSS data is available. The flaw is not listed in the CISA KEV catalog. An attacker can exploit it by making the victim load a malicious HTML page or visit a compromised website. The code executes within the Chrome sandbox, so the primary mitigation is to update to a patched version."}}}}, "created": "2026-04-09T08:17:36.594058+00:00", "title": "Use\u2011After\u2011Free in Chrome Media Enables Arbitrary Code Execution via Crafted HTML", "updated": "2026-04-09T08:27:00.137952+00:00", "vendors": ["google", "google$PRODUCT$chrome"]}