{"schemaVersion":3,"id":"CVE-2026-88774","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.\n\nThis issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to a feature policy bypass due to improper HTTP URL based expression usage.","dates":{"published":"2026-09-27T16:14:02.993Z","modified":"2026-09-29T15:24:29.082Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.2,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":7,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:N","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":7,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:N/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","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.2,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00241,"percentile":0.14255,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[{"date":"2026-09-28T00:00:00.000Z","score":0.00331,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00241,"percentile":0.14255}],"last30":[{"date":"2026-09-28T00:00:00.000Z","score":0.00331,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00241,"percentile":0.14255}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-20","name":"Improper Input Validation","description":"The product receives input or data, but it does\n        not validate or incorrectly validates that the input has the\n        properties that are required to process the data safely and\n        correctly.","type":"weakness","status":"Stable","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/20.html"}],"affected":[{"vendor":"citrix netscaler","product":"adc","name":"ADC","label":"adc","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 14.1-73.37","noFixRecorded":false,"fixedIn":null},{"text":"< 13.1-64.23","noFixRecorded":false,"fixedIn":null},{"text":"< 14.1-73.37 FIPS","noFixRecorded":false,"fixedIn":null},{"text":"< 13.1.37.279 FIPS and NDcPP","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 14.1-73.37 | < 13.1-64.23 | < 14.1-73.37 FIPS | < 13.1.37.279 FIPS and NDcPP","eol":null,"hubHref":"/vendor/citrix_netscaler/adc"},{"vendor":"citrix netscaler","product":"gateway","name":"Gateway","label":"gateway","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 14.1-73.37","noFixRecorded":false,"fixedIn":null},{"text":"< 13.1-64.23","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 14.1-73.37 | < 13.1-64.23","eol":null,"hubHref":"/vendor/citrix_netscaler/gateway"},{"vendor":"citrix","product":"netscaler_application_delivery_controller","name":"netscaler application delivery controller","label":"netscaler_application_delivery_controller","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 13.1, < 13.1-64.23","noFixRecorded":false,"fixedIn":null},{"text":"≥ 13.1, < 13.1.37.279","noFixRecorded":false,"fixedIn":null},{"text":"≥ 14.1, < 14.1-73.37","noFixRecorded":false,"fixedIn":null},{"text":"≥ 14.1-66.68, ≤ 14.1-73.37","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 13.1, < 13.1-64.23 | ≥ 13.1, < 13.1.37.279 | ≥ 14.1, < 14.1-73.37 | ≥ 14.1-66.68, ≤ 14.1-73.37","eol":null,"hubHref":"/vendor/citrix/netscaler_application_delivery_controller"},{"vendor":"citrix","product":"netscaler_gateway","name":"netscaler gateway","label":"netscaler_gateway","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 13.1, < 13.1-64.23","noFixRecorded":false,"fixedIn":null},{"text":"≥ 14.1, < 14.1-73.37","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 13.1, < 13.1-64.23 | ≥ 14.1, < 14.1-73.37","eol":null,"hubHref":"/vendor/citrix/netscaler_gateway"}],"affectedCount":4,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697096&articleTitle=Citrix_NetScaler_ADC_and_Citrix_NetScaler_Gateway_Security_Bulletin_for_CVE_2026_88771_CVE_2026_88772_CVE_2026_88773_CVE_2026_88774_CVE_2026_88775_CVE_2026_88776_CVE_2026_88777_and_CVE_2026_88778","label":"support.citrix.com/support-home/…","hostname":"support.citrix.com","tags":["Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-09-27T16:14:02.993Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-09-29T15:24:29.082Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":29,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T13:37:29.839Z","stale":false,"partial":false}}