Ghostwire

CVE-2026-59831: GitHub CLI (gh) is GitHub’s official command line tool. From 2.10.0 through 2.95.0, connecting to a malicious Codespace...

MEDIUM CVSS 4.4 Exploit Available 2 PoC

Published: July 9, 2026 | Last Modified: July 9, 2026

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.

Ghostwire Analysis — What This Means Practically

Medium CVSS score indicates moderate risk — exploitation requires specific conditions or results in limited impact.
2 proof-of-concept exploits available on GitHub. Public exploit code lowers the barrier for both researchers and attackers.

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.

CVE-2026-59831: GitHub CLI (gh) is GitHub’s official command line tool. From 2.10.0 through 2.95.0, connecting to a malicious Codespace...

Description

Ghostwire Analysis — What This Means Practically

Proof-of-Concept Exploits (2)

Security Coverage (1 articles)

References