CVE-2026-88773
criticalInconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling') vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
Vendor / product: Citrix — netscaler application delivery controller
Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling') vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This 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 and NDcPP; Gateway: before 14.1-73.37 FIPS and before 13.1-64.23.
CVSS
10.0
10.0 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-09-27 17:16
Modified: 2026-09-29 16:17
NVD status: Analyzed
Last synced 2 days ago
Verified against the source API 2026-10-27 07:07 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
citrix / netscaler_application_delivery_controller ≥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
citrix / netscaler_gateway ≥13.1 <13.1-64.23, ≥14.1 <14.1-73.37
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697096 50a63c94-1ea7-4568-8c11-eb79e7c5a2b5
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:07 UTC · record ↗