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

Vulnerability CVE-2026-13323 affects Open VSX Registry before 1.0.2. The /vscode/unpkg/ endpoint serves user-supplied HTML without CSP or Content-Disposition headers, enabling a publisher to upload a crafted VSIX and lure authenticated users to visit the URL. This inline rendering in the open-vsx...