importantSYS.SOURCE: The Hacker News• 2026-08-20T19:05:13+05:30

Critical Authentication Bypass Vulnerability in Citrix NetScaler ADC and Gateway Deployments

#citrix #vulnerability #network security #authentication

A critical authentication bypass vulnerability (CVE-2026-19490) affects specific Citrix NetScaler ADC and Gateway configurations, allowing unauthorized access under certain conditions. Citrix has released patches for impacted versions, emphasizing urgent updates for affected deployments.

Citrix has released updates to address two security flaws impacting NetScaler ADC and NetScaler Gateway deployments, including a critical-severity authentication bypass vulnerability.

According to the cloud computing and virtualization technology company, the issues affect customer-managed NetScaler ADC and NetScaler Gateway, including certain FIPS and NDcPP builds, as well as SecurAccess

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> OPTIMIZING LLM OUTPUT EFFICIENCY THROUGH HISTORICAL TELEGRAPHESE COMPRESSION TECHNIQUES > CISO INSIGHTS REVEAL CYBER RISK SHIFTS TOWARD INTERNAL WORKFLOWS > FBI WARNS OF ONGOING FORTIBLEED CAMPAIGN TARGETING FORTINET DEVICES WITH 86,644 CREDENTIALS COMPROMISED > CRITICAL ATLASSIAN DATA CENTER VULNERABILITY CVE-2026-21589 EXPLOITED WITHIN TWO HOURS OF DISCLOSURE > AGENTIC PENTESTING: PROOFS, LIMITATIONS, AND CONTINUOUS VALIDATION CHALLENGES > CHROME INTEGRATES JPEG XL FOR ENHANCED IMAGE COMPRESSION > EXPLOITING LARGE LANGUAGE MODELS AND DATA POISONING TO MANIPULATE CONSENSUS > ADVANCEMENTS IN SYNTHETIC BIOLOGY ENABLE CREATION OF MIRROR-LIFE ORGANISMS > CANADIAN STUDY WARNS PERMANENT DAYLIGHT SAVING TIME POSES RISKS TO SLEEP AND MENTAL HEALTH > RISING PS5 JAILBREAKS POSE SIGNIFICANT SECURITY CHALLENGES> OPTIMIZING LLM OUTPUT EFFICIENCY THROUGH HISTORICAL TELEGRAPHESE COMPRESSION TECHNIQUES > CISO INSIGHTS REVEAL CYBER RISK SHIFTS TOWARD INTERNAL WORKFLOWS > FBI WARNS OF ONGOING FORTIBLEED CAMPAIGN TARGETING FORTINET DEVICES WITH 86,644 CREDENTIALS COMPROMISED > CRITICAL ATLASSIAN DATA CENTER VULNERABILITY CVE-2026-21589 EXPLOITED WITHIN TWO HOURS OF DISCLOSURE > AGENTIC PENTESTING: PROOFS, LIMITATIONS, AND CONTINUOUS VALIDATION CHALLENGES > CHROME INTEGRATES JPEG XL FOR ENHANCED IMAGE COMPRESSION > EXPLOITING LARGE LANGUAGE MODELS AND DATA POISONING TO MANIPULATE CONSENSUS > ADVANCEMENTS IN SYNTHETIC BIOLOGY ENABLE CREATION OF MIRROR-LIFE ORGANISMS > CANADIAN STUDY WARNS PERMANENT DAYLIGHT SAVING TIME POSES RISKS TO SLEEP AND MENTAL HEALTH > RISING PS5 JAILBREAKS POSE SIGNIFICANT SECURITY CHALLENGES