CVE-2026-126862

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{}

{"affected": [{"affectedData": [{"product": "Chrome", "vendor": "Google", "versions": [{"lessThan": "157.0.8103.78", "status": "affected", "version": "157.0.8103.78", "versionType": "custom"}]}], "source": "chrome-cve-admin@google.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*", "matchCriteriaId": "8F6B0625-AEDC-487A-87B8-8BB68A506D55", "versionEndExcluding": "157.0.8103.78", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:o:google:android:-:*:*:*:*:*:*:*", "matchCriteriaId": "F8B9FEC8-73B6-43B8-B24E-1F7C20D91D26", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper input validation in Core in Google Chrome on on Android prior to 157.0.8103.78 allowed a local attacker to bypass web origin policy via a co-installed app. (Chromium security severity: High)"}], "id": "CVE-2026-126862", "lastModified": "2026-11-13T15:50:51.533", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 7.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 5.2, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-126862", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-11-12T17:47:19.558062Z", "version": "2.0.3"}}]}, "published": "2026-11-11T23:17:14.553", "references": [{"source": "chrome-cve-admin@google.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop_01744469280.html"}, {"source": "chrome-cve-admin@google.com", "tags": ["Permissions Required"], "url": "https://issues.chromium.org/issues/574381704"}], "sourceIdentifier": "chrome-cve-admin@google.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "chrome-cve-admin@google.com", "type": "Secondary"}]}

{"bugzilla": {"description": "chromium-browser: chromium-browser: Web origin policy bypass via co-installed application", "id": "2571984", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2571984"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "status": "draft"}, "cwe": "CWE-346", "details": ["A flaw was found in Google Chrome on Android. Improper input validation in the Core component allows a local attacker to bypass web origin policy restrictions using a co-installed application. This vulnerability may allow a malicious application on the device to access sensitive data across different web domains or perform unauthorized actions."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2026-126862", "public_date": "2026-11-11T22:38:53Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-126862\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-126862\nhttps://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop_01744469280.html\nhttps://issues.chromium.org/issues/574381704"], "statement": "This vulnerability is rated as Important because a failure in origin verification could enable an attacker to circumvent same-origin boundaries and compromise cross-site confidentiality and integrity without requiring user interaction. However, this flaw targets mobile application interaction models on the Android platform, requiring a locally co-installed program to trigger the defect. Because Red Hat Enterprise Linux desktop environments do not implement the Android application framework, standard deployments are not directly exposed to this attack vector.", "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,157.0.8103.78)"}}], "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": "2026-11-12T18:00:06.712206+00:00", "title": "Chrome Web Origin Policy Bypass via Co-installed App", "updated": "2026-11-13T03:00:07.330568+00:00", "vendors": ["google", "google$PRODUCT$chrome"]}