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CVE-2026-88773 is an HTTP request/response smuggling vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway caused by inconsistent interpretation of HTTP requests. Affected releases include ADC versions before 14.1-73.37 or 13.1-64.23, ADC 14.1 FIPS before 14.1-73.37 FIPS, ADC 13.1 FIPS/NDcPP before 13.1-37.279, and Gateway versions before 14.1-73.37 FIPS or 13.1-64.23. Crafted HTTP traffic can cause request-boundary desynchronization between HTTP-processing components.
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No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
15 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An HTTP request-smuggling vulnerability affecting NetScaler ADC and Gateway.
An HTTP request/response smuggling vulnerability (CWE-444) in Citrix NetScaler ADC and Citrix NetScaler Gateway caused by inconsistent interpretation of HTTP requests. The supplied CVSS v4 vector indicates network-reachable exploitation with no privileges or user interaction required, with high integrity impact and subsequent-system integrity impact.
A critical HTTP request-smuggling vulnerability affecting NetScaler deployments that use HTTP configurations, including applicable HTTP or SSL virtual servers.
A CVSS 9.3 HTTP request/response smuggling vulnerability (CWE-444) in Citrix NetScaler ADC and Gateway.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.