Vulnerabilities in Citrix NetScaler ADC and NetScaler Gateway

Citrix has identified vulnerabilities in NetScaler ADC and NetScaler Gateway. The vulnerability with identifier CVE-2026-19489 involves a memory overflow in NetScaler ADC and NetScaler Gateway when the products are configured as SIP ALG within a Large Scale NAT LSN group. This memory allocation...

Critical NetScaler Flaw Can Bypass Authentication on Certain Gateway and AAA Servers

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 Multiple Vulnerabilities (CTX696939)

The remote NetScaler ADC formerly Citrix ADC or NetScaler Gateway formerly Citrix Gateway device is 13.1 prior to 13.1-63.21, or 14.1 prior to 14.1-73.32, or 13.1-FIPS/NDcPP prior to 13.1-37.277, or 14.1-FIPS prior to 14.1-73.32. It is, therefore, affected by multiple vulnerabilities: -...

CVE-2026-19490

creationtimestamp| type| source ---|---|--- 2026-08-19 13:38:22+00:00| seen| https://bsky.app/profile/samilaiho.com/post/3mtgu422mv22l 2026-08-19 15:10:10+00:00| seen| https://bsky.app/profile/stackflag.bsky.social/post/3mtgza5tnvr2m 2026-08-19 15:23:22+00:00| seen|...

CVE-2026-19490

Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21...

CVE-2026-19490 NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-19490

Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21...

CVE-2026-19490 NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-19490

Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21...

CVE-2026-19490

CVE-2026-19490 is an authentication bypass (CWE-288) in NetScaler ADC and NetScaler Gateway (versions 14.1 before 14.1-73.32 and 13.1 before 13.1-63.21). The root cause lies in the SAML HTTP-Redirect binding handler at /cgi/samlauth, which parses assertions with the strict flag cleared —unlike th...

NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-19489 and CVE-2026-19490

Multiple vulnerabilities have been discovered in NetScaler ADC formerly Citrix ADC and NetScaler Gateway formerly Citrix Gateway. Refer below for further details. The information on this page is being provided to you on an "AS IS" and "AS-AVAILABLE" basis. The issues described on this page may or...