CVE-2026-19490

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-19490", "assignerOrgId": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5", "state": "PUBLISHED", "assignerShortName": "NetScaler", "dateReserved": "2026-08-10T17:39:56.668Z", "datePublished": "2026-08-19T12:54:39.730Z", "dateUpdated": "2026-10-07T18:01:17.320Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5", "shortName": "NetScaler", "dateUpdated": "2026-08-19T12:54:39.730Z"}, "title": "NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-19490", "affected": [{"vendor": "NetScaler", "product": "ADC", "versions": [{"status": "affected", "version": "14.1", "lessThanOrEqual": "73.32", "versionType": "patch"}, {"status": "affected", "version": "13.1", "lessThanOrEqual": "63.21", "versionType": "patch"}], "defaultStatus": "unaffected"}, {"vendor": "NetScaler", "product": "Gateway", "versions": [{"status": "affected", "version": "14.1", "lessThanOrEqual": "73.32", "versionType": "patch"}, {"status": "affected", "version": "13.1", "lessThanOrEqual": "63.21", "versionType": "patch"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Vulnerability in NetScaler ADC and NetScaler Gateway.\n\nThis issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Vulnerability in NetScaler ADC and NetScaler Gateway.<p>This issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21.</p>"}]}], "references": [{"url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696939"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "LOW", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "LOW", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "LOW", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "CRITICAL", "baseScore": 9.3, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.4"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-288", "lang": "en", "description": "CWE-288 Authentication Bypass Using an Alternate Path or Channel"}]}], "references": [{"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-19490", "tags": ["government-resource"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-10T03:55:17.447903Z", "id": "CVE-2026-19490", "options": [{"Exploitation": "active"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}, {"other": {"type": "kev", "content": {"dateAdded": "2026-09-09", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-19490"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-07T18:01:17.320Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-19490", "role": "CISA Coordinator", "options": [{"Exploitation": "active"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-10T03:55:17.447903Z"}}}, {"other": {"type": "kev", "content": {"dateAdded": "2026-09-09", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-19490"}}}], "references": [{"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-19490", "tags": ["government-resource"]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-288", "description": "CWE-288 Authentication Bypass Using an Alternate Path or Channel"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-20T13:22:36.586Z"}}], "cna": {"title": "NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-19490", "source": {"discovery": "UNKNOWN"}, "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 9.3, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "LOW", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "LOW", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "LOW", "vulnConfidentialityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "NetScaler", "product": "ADC", "versions": [{"status": "affected", "version": "14.1", "versionType": "patch", "lessThanOrEqual": "73.32"}, {"status": "affected", "version": "13.1", "versionType": "patch", "lessThanOrEqual": "63.21"}], "defaultStatus": "unaffected"}, {"vendor": "NetScaler", "product": "Gateway", "versions": [{"status": "affected", "version": "14.1", "versionType": "patch", "lessThanOrEqual": "73.32"}, {"status": "affected", "version": "13.1", "versionType": "patch", "lessThanOrEqual": "63.21"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696939"}], "x_generator": {"engine": "Vulnogram 1.0.4"}, "descriptions": [{"lang": "en", "value": "Vulnerability in NetScaler ADC and NetScaler Gateway.\n\nThis issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21.", "supportingMedia": [{"type": "text/html", "value": "Vulnerability in NetScaler ADC and NetScaler Gateway.<p>This issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21.</p>", "base64": false}]}], "providerMetadata": {"orgId": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5", "shortName": "NetScaler", "dateUpdated": "2026-08-19T12:54:39.730Z"}}}, "cveMetadata": {"cveId": "CVE-2026-19490", "state": "PUBLISHED", "dateUpdated": "2026-10-07T18:01:17.320Z", "dateReserved": "2026-08-10T17:39:56.668Z", "assignerOrgId": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5", "datePublished": "2026-08-19T12:54:39.730Z", "assignerShortName": "NetScaler"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "ADC", "vendor": "NetScaler", "versions": [{"lessThanOrEqual": "73.32", "status": "affected", "version": "14.1", "versionType": "patch"}, {"lessThanOrEqual": "63.21", "status": "affected", "version": "13.1", "versionType": "patch"}]}, {"defaultStatus": "unaffected", "product": "Gateway", "vendor": "NetScaler", "versions": [{"lessThanOrEqual": "73.32", "status": "affected", "version": "14.1", "versionType": "patch"}, {"lessThanOrEqual": "63.21", "status": "affected", "version": "13.1", "versionType": "patch"}]}], "source": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5"}], "cisaActionDue": "2026-09-12", "cisaExploitAdd": "2026-09-09", "cisaRequiredAction": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA\u2019s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA\u2019s \u201cForensics Triage Requirements\u201d (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.", "cisaVulnerabilityName": "Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel Vulnerability", "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*", "matchCriteriaId": "2F90F173-E24C-4189-87FF-2157DBBECE4A", "versionEndExcluding": "13.1-37.277", "versionStartIncluding": "13.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*", "matchCriteriaId": "2CD7AEA1-F0D9-47E9-A4BF-6E72E2083934", "versionEndExcluding": "13.1-37.277", "versionStartIncluding": "13.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*", "matchCriteriaId": "07826E3F-A0BA-42DB-97DD-677E2F1E99B8", "versionEndExcluding": "13.1-63.21", "versionStartIncluding": "13.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*", "matchCriteriaId": "12664220-1266-43A3-A5B9-011E06C56A3E", "versionEndExcluding": "14.1-73.32", "versionStartIncluding": "14.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*", "matchCriteriaId": "98857F06-6895-4454-A52D-E200D2109B19", "versionEndIncluding": "14.1-73.32", "versionStartIncluding": "14.1-66.68", "vulnerable": true}, {"criteria": "cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*", "matchCriteriaId": "0ACEC99D-8145-45D4-BFCC-ADC11999D2CF", "versionEndExcluding": "13.1-63.21", "versionStartIncluding": "13.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*", "matchCriteriaId": "45606A9C-06AF-4A4B-80B4-CB1A29230C85", "versionEndExcluding": "14.1-73.32", "versionStartIncluding": "14.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Vulnerability in NetScaler ADC and NetScaler Gateway.\n\nThis issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21."}, {"lang": "es", "value": "Vulnerabilidad en NetScaler ADC y NetScaler Gateway.\n\nEste problema afecta a ADC: desde 14.1 hasta 73.32 y desde 13.1 hasta 63.21; Gateway: desde 14.1 hasta 73.32 y desde 13.1 hasta 63.21."}], "id": "CVE-2026-19490", "lastModified": "2026-10-26T13:10:00.140", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 9.3, "baseSeverity": "CRITICAL", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "LOW", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-19490", "options": [{"exploitation": "active"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-10T03:55:17.447903Z", "version": "2.0.3"}}]}, "published": "2026-08-19T13:17:45.000", "references": [{"source": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5", "tags": ["Vendor Advisory"], "url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696939"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["US Government Resource"], "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-19490"}], "sourceIdentifier": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-288"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[14.1,73.32]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[13.1,63.21]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "ADC", "source": "cna", "vendor": "NetScaler"}, "product": "adc", "vendor": "netscaler"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[14.1,73.32]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[13.1,63.21]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Gateway", "source": "cna", "vendor": "NetScaler"}, "product": "gateway", "vendor": "netscaler"}], "created": "2026-08-19T15:00:05.261244+00:00", "updated": "2026-10-25T17:30:16.002851+00:00", "vendors": ["netscaler", "netscaler$PRODUCT$adc", "netscaler$PRODUCT$gateway"]}