{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-126856", "assignerOrgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28", "state": "PUBLISHED", "assignerShortName": "Chrome", "dateReserved": "2026-11-11T22:08:23.429Z", "datePublished": "2026-11-11T22:38:58.741Z", "dateUpdated": "2026-11-12T17:28:25.903Z"}, "containers": {"cna": {"affected": [{"vendor": "Google", "product": "Chrome", "versions": [{"version": "157.0.8103.78", "status": "affected", "lessThan": "157.0.8103.78", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Incomplete cleanup in Cache in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to obtain cross-origin data via a crafted HTML page. (Chromium security severity: High)"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Incomplete cleanup", "cweId": "CWE-459"}]}], "providerMetadata": {"orgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28", "shortName": "Chrome", "dateUpdated": "2026-11-11T22:38:58.741Z"}, "references": [{"url": "https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop_01744469280.html"}, {"url": "https://issues.chromium.org/issues/577260644"}]}, "adp": [{"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": "2026-11-12T17:27:22.043612Z", "id": "CVE-2026-126856", "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": "2026-11-12T17:28:25.903Z"}}]}}

{}

{"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"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Incomplete cleanup in Cache in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to obtain cross-origin data via a crafted HTML page. (Chromium security severity: High)"}], "id": "CVE-2026-126856", "lastModified": "2026-11-12T18:17:30.980", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-126856", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-12T17:27:22.043612Z", "version": "2.0.3"}}]}, "published": "2026-11-11T23:17:13.747", "references": [{"source": "chrome-cve-admin@google.com", "url": "https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop_01744469280.html"}, {"source": "chrome-cve-admin@google.com", "url": "https://issues.chromium.org/issues/577260644"}], "sourceIdentifier": "chrome-cve-admin@google.com", "vulnStatus": "Undergoing Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-459"}], "source": "chrome-cve-admin@google.com", "type": "Secondary"}]}

{"bugzilla": {"description": "chromium-browser: chromium-browser: Incomplete cleanup in Cache", "id": "2572021", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2572021"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-459", "details": ["An incomplete cleanup flaw was found in the Cache component of the Chromium browser.\nUpstream bug(s):\nhttps://code.google.com/p/chromium/issues/detail?id=577260644\nhttps://code.google.com/p/chromium/issues/detail?id=126856"], "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-2026-126856", "public_date": "2026-11-11T22:38:58Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-126856\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-126856\nhttps://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop_01744469280.html\nhttps://issues.chromium.org/issues/577260644"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.", "threat_severity": "Moderate"}

{"created": "2026-11-12T17:30:06.328423+00:00", "updated": "2026-11-12T17:30:06.328426+00:00", "vendors": []}