VULNERABILITY INTELLIGENCE

CVE-2026-59831

CVSS score4.4 MEDIUM
EPSS probability0.33%
CISA KEVNot currently listed
Published2026-07-09
Last modified2026-07-14
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N

Description

GitHub CLI (gh) is GitHub’s official command line tool. From 2.10.0 through 2.95.0, connecting to a malicious Codespace with gh codespace jupyter can allow command execution because the command opens a JupyterLab URL supplied by a process inside the Codespace without validating that it is a loopback HTTP or HTTPS address, allowing a crafted vscode:// or vscode-insiders:// URL to be handed to VS Code. This issue is fixed in version 2.96.0.

Weakness classification

  • security-advisories@github.com: CWE-829

Primary references