CVE-2026-59831

Published: Jul 9, 2026Modified: Jul 14, 2026

4.4

Vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N

Exploitability: 1.3 / Impact: 2.7

Source: security-advisories@github.com (Secondary)

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.

Related CWEs

CWE-829

Inclusion of Functionality from Untrusted Control Sphere

The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere.

References (3)

https://github.com/cli/cli/commit/b300f2ec7ec9dc9addc39b2ad88c54097ded7ca0

Source: security-advisories@github.com

https://github.com/cli/cli/releases/tag/v2.96.0

Source: security-advisories@github.com

https://github.com/cli/cli/security/advisories/GHSA-8cg3-r6g9-fpg2

Source: security-advisories@github.com

Timeline

No history available yet.