{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-5280", "assignerOrgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28", "state": "PUBLISHED", "assignerShortName": "Chrome", "dateReserved": "2026-03-31T20:07:12.932Z", "datePublished": "2026-04-01T04:41:32.335Z", "dateUpdated": "2026-04-02T03:55:44.222Z"}, "containers": {"cna": {"affected": [{"vendor": "Google", "product": "Chrome", "versions": [{"version": "146.0.7680.178", "status": "affected", "lessThan": "146.0.7680.178", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Use after free in WebCodecs in Google Chrome prior to 146.0.7680.178 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": "2026-04-01T04:41:32.335Z"}, "references": [{"url": "https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_31.html"}, {"url": "https://issues.chromium.org/issues/491515787"}]}, "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": "2026-04-01T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-5280"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-02T03:55:44.222Z"}}]}}

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{"bugzilla": {"description": "chromium-browser: Use after free in WebCodecs", "id": "2453698", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2453698"}, "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 WebCodecs component of the Chromium browser.\nUpstream bug(s):\nhttps://code.google.com/p/chromium/issues/detail?id=491515787"], "name": "CVE-2026-5280", "public_date": "2026-03-31T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-5280\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-5280\nhttps://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_31.html\nhttps://issues.chromium.org/issues/491515787"], "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": "[146.0.7680.178,146.0.7680.178)"}}], "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": "2026-04-18T17:23:13.581509+00:00", "value": {"mitigation_remediation": ["Update Google Chrome to version 146.0.7680.178 or later.", "Ensure Chrome\u2019s automatic update feature is enabled so future security fixes are installed promptly.", "Monitor Chrome release notes for additional mitigations or patches related to WebCodecs."], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "The flaw is present in Google Chrome versions prior to 146.0.7680.178 on all desktop platforms, including Windows, macOS, and Linux, affecting users who have not applied the latest update.", "description_and_impact": "A use\u2011after\u2011free flaw in Chrome\u2019s WebCodecs implementation allows a malicious website to trigger arbitrary code execution inside the browser sandbox. The vulnerability is identified as a use\u2011after\u2011free (CWE\u2011416) and is described as enabling a remote attacker to run attacker\u2011controlled code within the sandboxed process.", "risk_and_exploitability": "The CVSS score of 8.8 reflects the serious impact of an exploitation that would result in arbitrary code execution in the sandbox. The EPSS score of less than 1% indicates an overall low probability of exploitation, and the vulnerability is not listed in CISA KEV. Attackers would likely deliver a crafted HTML page containing malicious WebCodecs usage to trigger the use\u2011after\u2011free and execute code within the browser process."}}}}, "created": "2026-04-02T20:18:21.920994+00:00", "updated": "2026-04-18T17:30:05.949163+00:00", "vendors": ["google", "google$PRODUCT$chrome"]}