CISA added a critical Citrix NetScaler authentication bypass flaw (CVE-2026-19490) to its Known Exploited Vulnerabilities catalog after observing in-the-wild attacks targeting the issue. Federal civilian agencies must apply vendor mitigations by September 12, 2026. CVE-2026-19490 affects Citrix NetScaler ADC and NetScaler Gateway appliances configured as an Authentication, Authorization and Auditing virtual server or as a […]
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