CISA Says Attackers Are Exploiting Two Critical Citrix NetScaler Flaws Globally

The U.S. Cybersecurity and Infrastructure Security Agency CISA on Sunday added two critical Citrix NetScaler ADC and Gateway flaws to its Known Exploited Vulnerabilities KEV catalog, following reports of active exploitation. The vulnerabilities are listed below - CVE-2026-88771 CVSS score: 9.5 - ...

Security Bulletin: IBM InfoSphere Optim Archive Viewer is affected by multiple vulnerabilities in python-multipart (CVE-2026-53537, CVE-2026-53538, CVE-2026-53539, CVE-2026-53540)

Summary Multiple Denial of Service and resource exhaustion vulnerabilities in the python-multipart parser library CVE-2026-53537, CVE-2026-53538, CVE-2026-53539, CVE-2026-53540 used by IBM InfoSphere Optim Archive Viewer have been addressed by upgrading the component to version 0.0.32...

CVE-2026-97027: Improper Input Validation

Flatpak passes through arbitrary vendor-extension keys unmodified when exporting an application's Desktop Entry .desktop and D-Bus Service .service files, instead of validating against an allowlist. A malicious Flatpak app can use this to cause denial of service e.g. forced application restart...

PT-2026-99920

Name of the Vulnerable Software and Affected Versions IdentityIQ affected versions not specified Description An unauthenticated user can achieve remote code execution on the server due to improper input validation of content submitted to web service API endpoints. Recommendations At the moment,...

CVE-2026-100370: Improper Input Validation

DOMSanitizer is a DOM/SVG/MathML Sanitizer for PHP 7.3+. Prior to version 1.0.15, the isDangerousUrl method is responsible for rejecting dangerous URL values in the href and xlink:href attributes. The weakness is that "javascript:" is rejected as a scheme, while "data:" is rejected only when the...

PT-2026-102340

Name of the Vulnerable Software and Affected Versions DOMSanitizer versions prior to 1.0.15 Description An incomplete input-validation defect exists in the isDangerousUrl function, which is used to reject dangerous URL values in the href and xlink:href attributes. While the javascript: scheme is...

CVE-2026-12342: Improper Input Validation

This vulnerability impacts all versions of IdentityIQ and allows an unauthenticated user remote code execution on the IdentityIQ server due to improper input validation of submitted web service API content...

CVE-2026-100902: Improper Validation of Syntactic Correctness of Input

A vulnerability was determined in Barco ClickShare CX-20 Gen2 up to 02.26.00.0007. Affected by this issue is some unknown functionality of the file /wallpaper of the component Wallpaper Upload. This manipulation of the argument wallpaper causes improper validation of syntactic correctness of inpu...

The vulnerability of NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway (formerly Citrix Gateway) access control systems, related to insufficient input data validation, allows attackers to execute arbitrary commands.

The vulnerability of NetScaler ADC formerly Citrix ADC and the NetScaler Gateway access control system formerly Citrix Gateway is related to insufficient validation of input data. Exploiting this vulnerability allows a malicious actor to execute arbitrary commands remotely...

CVE-2026-88771

Improper input validation vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to an unauthenticated...

CVE-2026-88771

Citrix NetScaler ADC and NetScaler Gateway are vulnerable to a critical improper input validation vulnerability (CWE-20). This flaw allows an unauthenticated attacker to execute arbitrary commands remotely. The issue impacts all deployments, including those in default configuration , with no addi...

CVE-2026-88771 A remote code execution vulnerability exists due to improper input validation, which can allow an unauthenticated attacker to execute arbitrary commands

Improper input validation vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to an unauthenticated...

CVE-2026-88771 A remote code execution vulnerability exists due to improper input validation, which can allow an unauthenticated attacker to execute arbitrary commands

Improper input validation vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to an unauthenticated...

EUVD-2026-87958

Improper input validation vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to an unauthenticated...

CISA Adds Two Known Exploited Vulnerabilities to Catalog

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities KEV Catalog, based on evidence of active exploitation. CVE-2026-88771link is external Citrix NetScaler Improper Input Validation Vulnerability CVE-2026-88772link is external Citrix NetScaler Improper Restriction of...

VulnCheck KEV: CVE-2026-88771

Citrix NetScaler ADC and NetScaler Gateway contain an improper input validation vulnerability that could allow an unauthenticated attacker to execute arbitrary commands...

Citrix NetScaler Improper Input Validation Vulnerability

Citrix NetScaler ADC and NetScaler Gateway contain an improper input validation vulnerability that could allow an unauthenticated attacker to execute arbitrary commands...

CVE-2026-100833: Improper Input Validation

Contrast edgelesssys/contrast versions 1.14.0 before 1.23.1 generate runtime policies that fail to detect all container image substitutions. A bad rebase during a Kata Containers update accidentally introduced an allowstorage rule that accepts storage entries using the imageguestpull driver witho...

CVE-2026-88771: Improper Input Validation

Improper input validation vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to an unauthenticated...

Astra Linux – Vulnerability in Chromium

Improper input validation in the ServiceWorker mechanism in Google Chrome prior to version 152.0.7977.65 allowed a remote attacker to bypass system access restrictions through a crafted HTML page. Chromium security severity: Low...