# CVE-2026-19490: A Citrix NetScaler bug is being used in attacks

Status: Being used now (CISA KEV, added 2026-09-09)
Who: 
Do this: 

## Agent prompt (read-only)
Read-only check, change nothing, send nothing anywhere.
Is Citrix NetScaler (CVE-2026-19490) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2026-19490. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.

## Official description
Citrix NetScaler ADC and NetScaler Gateway contain an authentication-bypass vulnerability involving an alternate path or channel. When the NetScaler appliance is configured as an AAA virtual server or as a Gateway (SSL VPN, ICA Proxy, CVPN, or RDP Proxy), an unauthenticated remote threat actor may be able to bypass authentication.

## Sources
- https://support.citrix.com/external/article/CTX696939/netscaler-adc-and-netscaler-gateway-secu.html
- https://nvd.nist.gov/vuln/detail/CVE-2026-19490
- https://nvd.nist.gov/vuln/detail/CVE-2026-19490

Generated by isitexploited.org from public sources. Verify version numbers against the vendor before acting.