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Critical Citrix NetScaler auth bypass now leveraged in attacks

BleepingComputer·September 4, 2026·1 min read
Critical Citrix NetScaler auth bypass now leveraged in attacks

Attackers are actively exploiting a critical Citrix NetScaler authentication bypass vulnerability, CVE-2026-19490, according to Previdian. The flaw allows unauthorized access, and organizations are urged to patch immediately. Previdian reported the in-the-wild exploitation, marking a significant escalation in threat activity targeting NetScaler deployments.

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