CVE-2026-13323

In Open VSX Registry before 1.0.2, the /vscode/unpkg/ endpoint serves user-supplied HTML files with Content-Type: text/html and without a Content-Security-Policy or Content-Disposition: attachment response header. An unauthenticated attacker can register a publisher account, upload a VSIX...

CVE-2026-13323

In Open VSX Registry before 1.0.2, the /vscode/unpkg/ endpoint serves user-supplied HTML files with Content-Type: text/html and without a Content-Security-Policy or Content-Disposition: attachment response header. An unauthenticated attacker can register a publisher account, upload a VSIX...

PT-2026-54628

Name of the Vulnerable Software and Affected Versions Open VSX Registry versions prior to 1.0.2 Description The '/vscode/unpkg/' endpoint serves user-supplied HTML files with a text/html Content-Type and lacks a Content-Security-Policy or Content-Disposition: attachment response header. This allo...

CVE-2026-13323: Improper Neutralization of Input During Web Page Generation

In Open VSX Registry before 1.0.2, the /vscode/unpkg/ endpoint serves user-supplied HTML files with Content-Type: text/html and without a Content-Security-Policy or Content-Disposition: attachment response header. An unauthenticated attacker can register a publisher account, upload a VSIX...

CVE-2026-4983

Open VSX Registry does not sanitize SVG files uploaded as extension icons prior to storage, and serves them with Content-Type: image/svg+xml without security headers such as Content-Security-Policy or Content-Disposition: attachment. This allows an attacker to publish an extension with a maliciou...

CVE-2026-4983

Open VSX Registry does not sanitize SVG files uploaded as extension icons prior to storage, and serves them with Content-Type: image/svg+xml without security headers such as Content-Security-Policy or Content-Disposition: attachment. This allows an attacker to publish an extension with a maliciou...

CVE-2026-4983

Open VSX Registry does not sanitize SVG files uploaded as extension icons prior to storage, and serves them with Content-Type: image/svg+xml without security headers such as Content-Security-Policy or Content-Disposition: attachment. This allows an attacker to publish an extension with a maliciou...

CVE-2026-4983

CVE-2026-4983 affects the Open VSX Registry where SVG icons uploaded as extensions are not sanitized before storage and are served as image/svg+xml without security headers. This enables stored cross-site scripting (XSS) when users navigate to the icon URL. The impact differs by deployment: on lo...

CVE-2026-4983

Open VSX Registry does not sanitize SVG files uploaded as extension icons prior to storage, and serves them with Content-Type: image/svg+xml without security headers such as Content-Security-Policy or Content-Disposition: attachment. This allows an attacker to publish an extension with a maliciou...

CVE-2026-4983: Improper Neutralization of Input During Web Page Generation

Open VSX Registry does not sanitize SVG files uploaded as extension icons prior to storage, and serves them with Content-Type: image/svg+xml without security headers such as Content-Security-Policy or Content-Disposition: attachment. This allows an attacker to publish an extension with a maliciou...

PT-2026-51488

Open VSX Registry does not sanitize SVG files uploaded as extension icons prior to storage, and serves them with Content-Type: image/svg+xml without security headers such as Content-Security-Policy or Content-Disposition: attachment. This allows an attacker to publish an extension with a maliciou...

CVE-2026-48027 Compromised Nx Console version 18.95.0

Nx Console is the user interface for Nx & Lerna. On 19 May 2026, a malicious version of Nx Console, 18.95.0, was published at 12:30 PM UTC and removed soon after at 12:48 PM UTC, leaving it available for 18 minutes in Visual Studio Marketplace. For OpenVSX, the problem was detected later, and the...

CVE-2026-48027 Compromised Nx Console version 18.95.0

Nx Console is the user interface for Nx & Lerna. On 19 May 2026, a malicious version of Nx Console, 18.95.0, was published at 12:30 PM UTC and removed soon after at 12:48 PM UTC, leaving it available for 18 minutes in Visual Studio Marketplace. For OpenVSX, the problem was detected later, and the...

GlassWorm Malware Takedown Disrupts Developer Supply Chain Attack Infrastructure

CrowdStrike, in partnership with Google and the Shadowserver Foundation, has announced the simultaneous disruption of all command-and-control C2 channels associated with GlassWorm, a persistent software chain campaign targeting software developers through malicious packages and extensions. "Since...

GlassWorm Campaign Uses Zig Dropper to Infect Multiple Developer IDEs

Cybersecurity researchers have flagged yet another evolution of the ongoing GlassWorm campaign, which employs a new Zig dropper that's designed to stealthily infect all integrated development environments IDEs on a developer's machine. The technique has been discovered in an Open VSX extension...

Open VSX Bug Let Malicious VS Code Extensions Bypass Pre-Publish Security Checks

Cybersecurity researchers have disclosed details of a now-patched bug impacting Open VSX's pre-publish scanning pipeline to cause the tool to allow a malicious Microsoft Visual Studio Code VS Code extension to pass the vetting process and go live in the registry. "The pipeline had a single boolea...

GlassWorm Supply-Chain Attack Abuses 72 Open VSX Extensions to Target Developers

Cybersecurity researchers have flagged a new iteration of the GlassWorm campaign that they say represents a "significant escalation" in how it propagates through the Open VSX registry. "Instead of requiring every malicious listing to embed the loader directly, the threat actor is now abusing...

CVE-2026-28353

Trivy Vulnerability Scanner is a VS Code extension that helps find vulnerabilities. In Trivy VSCode Extension version 1.8.12, which was distributed via OpenVSX marketplace was compromised and contained malicious code designed to leverage local AI coding agent to collect and exfiltrate sensitive...

PT-2026-23503

Name of the Vulnerable Software and Affected Versions Trivy Vulnerability Scanner VS Code Extension version 1.8.12 Description The Trivy Vulnerability Scanner VS Code extension was compromised with malicious code in version 1.8.12, distributed through the OpenVSX marketplace. This malicious code...

Eclipse Foundation Mandates Pre-Publish Security Checks for Open VSX Extensions

The Eclipse Foundation, which maintains the Open VSX Registry, has announced plans to enforce security checks before Microsoft Visual Studio Code VS Code extensions are published to the open-source repository to combat supply chain threats. The move marks a shift from a reactive to a proactive...