{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-5918", "assignerOrgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28", "state": "PUBLISHED", "assignerShortName": "Chrome", "dateReserved": "2026-04-08T20:10:22.013Z", "datePublished": "2026-04-08T21:21:07.218Z", "dateUpdated": "2026-04-09T14:32:05.359Z"}, "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": "Inappropriate implementation in Navigation in Google Chrome prior to 147.0.7727.55 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Inappropriate implementation"}]}], "providerMetadata": {"orgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28", "shortName": "Chrome", "dateUpdated": "2026-04-08T21:21:07.218Z"}, "references": [{"url": "https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html"}, {"url": "https://issues.chromium.org/issues/490139441"}]}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-352", "lang": "en", "description": "CWE-352 Cross-Site Request Forgery (CSRF)"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-346", "lang": "en", "description": "CWE-346 Origin Validation Error"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-04-09T14:31:29.467482Z", "id": "CVE-2026-5918", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-09T14:32:05.359Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "Inappropriate implementation in Navigation in Google Chrome prior to 147.0.7727.55 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)"}], "id": "CVE-2026-5918", "lastModified": "2026-04-09T15:16:17.427", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2026-04-08T22:16:31.570", "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/490139441"}], "sourceIdentifier": "chrome-cve-admin@google.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-346"}, {"lang": "en", "value": "CWE-352"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[147.0.7727.55,147.0.7727.55)"}}], "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": "2026-04-08T22:54:21.649884+00:00", "value": {"mitigation_remediation": ["Update Google Chrome to version 147.0.7727.55 or later, which contains the Navigation implementation fix.", "If immediate update is not possible, consider disabling or restricting cross\u2011origin resource access using site\u2011specific policy tools or extensions until a patch is applied."], "summary": {"action": "Immediate Patch", "impact": "Cross-origin Information Exposure"}, "threat_synthesis": {"affected_systems": "All versions of Google Chrome prior to 147.0.7727.55 are affected. The flaw exists in the renderer component of the browser; it is only exploited when the attacker can compromise that process. Users on older Chrome releases should be aware that the flaw remains until the release that contains the fix.", "description_and_impact": "The vulnerability stems from an improper Navigation implementation in Google Chrome, allowing an attacker who has already gained access to a renderer process to read data from a different origin by loading a specially formed HTML page. This flaw enables cross\u2011origin data leakage, exposing sensitive information that should be protected by the same\u2011origin policy. The Chromium team rates the vulnerability as low severity.", "risk_and_exploitability": "Because the flaw requires the attacker to control or compromise a renderer process, the overall attack surface is limited compared to arbitrary code execution or denial\u2011of\u2011service exploits. No EPSS score is available and the vulnerability is not listed in CISA\u2019s KEV catalog. The Chromium security severity is low, suggesting that the risk of exploitation in the wild is currently modest. Nonetheless, if an attacker can attain renderer\u2011process compromise by any means, the cross\u2011origin leakage could expose private user data."}}}}, "created": "2026-04-09T08:16:36.810232+00:00", "title": "Cross\u2011origin Data Leak via Navigation Implementation in Chrome", "updated": "2026-04-09T08:26:02.715787+00:00", "vendors": ["google", "google$PRODUCT$chrome"], "weaknesses": ["CWE-200", "CWE-1037"]}