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CVE-2026-88774 is a feature-policy bypass vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway caused by improper use of HTTP URL-based policy expressions. HTTP requests using non-normalized URL forms may evade policy evaluation, allowing configured security controls, including WAF or other URL-based rules, to be bypassed. It affects NetScaler ADC releases before 14.1-73.37 and 13.1-64.23, ADC 14.1 FIPS releases before 14.1-73.37 FIPS, ADC 13.1 FIPS and NDcPP releases before 13.1-37.279, and NetScaler Gateway releases before 14.1-73.37 and 13.1-64.23.
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No public exploit code observed for this vulnerability.
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A security-policy-related vulnerability addressed in the same Citrix NetScaler bulletin. The content does not report confirmed exploitation.
A feature-policy-bypass vulnerability caused by improper use of HTTP URL-based expressions in Citrix NetScaler ADC and Citrix NetScaler Gateway.
A vulnerability enabling bypass of the Feature Policy mechanism in NetScaler products.
A high-severity HTTP URL policy-bypass flaw that can allow non-normalized URLs to evade WAF policies or other URL-based security rules.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
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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.