CVE-2026-121240

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-121240", "assignerOrgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28", "state": "PUBLISHED", "assignerShortName": "Chrome", "dateReserved": "2026-11-03T10:34:08.792Z", "datePublished": "2026-11-03T20:42:59.719Z", "dateUpdated": "2026-11-09T19:51:38.411Z"}, "containers": {"cna": {"affected": [{"vendor": "Google", "product": "Chrome", "versions": [{"version": "157.0.8103.38", "status": "affected", "lessThan": "157.0.8103.38", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Improper input validation in Variations in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to bypass system access restrictions via crafted network traffic. (Chromium security severity: Low)"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper input validation", "cweId": "CWE-20"}]}], "providerMetadata": {"orgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28", "shortName": "Chrome", "dateUpdated": "2026-11-03T20:42:59.719Z"}, "references": [{"url": "https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop.html"}, {"url": "https://issues.chromium.org/issues/563181376"}]}, "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:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-11-09T19:46:59.421653Z", "id": "CVE-2026-121240", "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": "2026-11-09T19:51:38.411Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "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:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-121240", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-09T19:46:59.421653Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-09T19:49:43.175Z"}}], "cna": {"affected": [{"vendor": "Google", "product": "Chrome", "versions": [{"status": "affected", "version": "157.0.8103.38", "lessThan": "157.0.8103.38", "versionType": "custom"}]}], "references": [{"url": "https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop.html"}, {"url": "https://issues.chromium.org/issues/563181376"}], "descriptions": [{"lang": "en", "value": "Improper input validation in Variations in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to bypass system access restrictions via crafted network traffic. (Chromium security severity: Low)"}], "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-20", "description": "Improper input validation"}]}], "providerMetadata": {"orgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28", "shortName": "Chrome", "dateUpdated": "2026-11-03T20:42:59.719Z"}}}, "cveMetadata": {"cveId": "CVE-2026-121240", "state": "PUBLISHED", "dateUpdated": "2026-11-09T19:51:38.411Z", "dateReserved": "2026-11-03T10:34:08.792Z", "assignerOrgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28", "datePublished": "2026-11-03T20:42:59.719Z", "assignerShortName": "Chrome"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "Chrome", "vendor": "Google", "versions": [{"lessThan": "157.0.8103.38", "status": "affected", "version": "157.0.8103.38", "versionType": "custom"}]}], "source": "chrome-cve-admin@google.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*", "matchCriteriaId": "3D027DBD-0C99-494F-90E6-3AE1BB156A9A", "versionEndExcluding": "157.0.8103.38", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper input validation in Variations in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to bypass system access restrictions via crafted network traffic. (Chromium security severity: Low)"}], "id": "CVE-2026-121240", "lastModified": "2026-11-12T18:35:44.960", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/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-2026-121240", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-09T19:46:59.421653Z", "version": "2.0.3"}}]}, "published": "2026-11-03T21:17:34.290", "references": [{"source": "chrome-cve-admin@google.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop.html"}, {"source": "chrome-cve-admin@google.com", "tags": ["Permissions Required"], "url": "https://issues.chromium.org/issues/563181376"}], "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: Improper input validation in Variations", "id": "2566410", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2566410"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-20", "details": ["An improper input validation flaw was found in the Variations component of the Chromium browser.\nUpstream bug(s):\nhttps://issues.chromium.org/issues/563181376"], "name": "CVE-2026-121240", "public_date": "2026-11-03T20:42:59Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-121240\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-121240\nhttps://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop.html\nhttps://issues.chromium.org/issues/563181376"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.", "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[157.0.8103.38,157.0.8103.38)"}}], "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": "2026-11-03T22:45:03.451744+00:00", "updated": "2026-11-05T02:45:15.247704+00:00", "vendors": ["google", "google$PRODUCT$chrome"]}