CVE-2026-19558

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{"affected": [{"affectedData": [{"product": "Chrome", "vendor": "Google", "versions": [{"lessThan": "151.0.7922.137", "status": "affected", "version": "151.0.7922.137", "versionType": "custom"}]}], "source": "chrome-cve-admin@google.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*", "matchCriteriaId": "119C42F6-2FCC-4DFE-9BE6-183C651C8122", "versionEndExcluding": "151.0.7922.137", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Use after free in Extensions in Google Chrome prior to 151.0.7922.137 allowed an attacker who convinced a user to install a malicious extension to execute arbitrary code inside a sandbox via a crafted Chrome Extension. (Chromium security severity: High)"}, {"lang": "es", "value": "Uso despu\u00e9s de liberar en Extensiones en Google Chrome anterior a 151.0.7922.137 permit\u00eda a un atacante que convenciera a un usuario para instalar una extensi\u00f3n maliciosa ejecutar c\u00f3digo arbitrario dentro de una sybox mediante una Extensi\u00f3n de Chrome manipulada. (Gravedad de seguridad de Chromium: Alta)"}], "id": "CVE-2026-19558", "lastModified": "2026-10-23T20:10:00.160", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-19558", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-12T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-08-11T22:17:21.440", "references": [{"source": "chrome-cve-admin@google.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_01815628406.html"}, {"source": "chrome-cve-admin@google.com", "tags": ["Permissions Required"], "url": "https://issues.chromium.org/issues/536676756"}], "sourceIdentifier": "chrome-cve-admin@google.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "chrome-cve-admin@google.com", "type": "Secondary"}]}

{"bugzilla": {"description": "chromium-browser: Google Chrome Extensions: Arbitrary code execution via malicious extension installation", "id": "2514410", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2514410"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-416", "details": ["A flaw was found in Google Chrome Extensions. This use-after-free vulnerability allows a remote attacker to execute arbitrary code within the browser's sandbox. Exploitation occurs when a user is convinced to install a specially crafted malicious extension."], "name": "CVE-2026-19558", "public_date": "2026-08-11T21:23:53Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-19558\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-19558\nhttps://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_01815628406.html\nhttps://issues.chromium.org/issues/536676756"], "statement": "This Important flaw in Google Chrome Extensions allows for arbitrary code execution within the browser's sandbox. Exploitation requires a user to be convinced to install a malicious extension, limiting the attack vector to user interaction rather than remote, unauthenticated access.", "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[151.0.7922.137,151.0.7922.137)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Chrome", "source": "cna", "vendor": "Google"}, "product": "chrome", "vendor": "google"}], "created": "2026-08-12T12:00:03.834740+00:00", "updated": "2026-08-13T02:15:02.667786+00:00", "vendors": ["google", "google$PRODUCT$chrome"]}