CVE-2026-88773
Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling') vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
- Severity: Critical
- CVSS 9.3
- EPSS 0.36%
- Weaponized (Metasploit/Nuclei)
- P1 · Patch now
Why P1: Metasploit/Nuclei can already hit it.
Description
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.
Affected products
- citrix netscaler application delivery controller >= 13.1, < 13.1-64.23
- citrix netscaler application delivery controller >= 13.1, < 13.1.37.279
- citrix netscaler application delivery controller >= 13.1, < 13.1.37.279
- citrix netscaler application delivery controller >= 14.1, < 14.1-73.37
- citrix netscaler application delivery controller >= 14.1-66.68, <= 14.1-73.37
- citrix netscaler gateway >= 13.1, < 13.1-64.23
- citrix netscaler gateway >= 14.1, < 14.1-73.37
Weakness
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/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
References
- NVD record NVD
- CVE Program record CVE Program
- Reference NVD
- GitHub security advisory GitHub