SEPTEMBER 19, 2026
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Case File

CVE-2026-59831

MEDIUM · CVSS 4.4 EPSS 0.26% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-09 · Last synced 2026-08-08

CyberRota Analysis

AI-Generated

The GitHub CLI (gh) versions 2.10.0 through 2.95.0 are vulnerable to command execution when connecting to a malicious Codespace, as it improperly validates JupyterLab URLs, potentially allowing crafted URLs to be executed in VS Code. This vulnerability poses a medium risk, particularly for developers and organizations utilizing GitHub CLI for managing Codespaces, who should prioritize upgrading to version 2.96.0 to mitigate the risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-59831
Severity
MEDIUM
CVSS
4.4
EPSS
0.26%
GitHub

Original NVD 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.