CVE-2026-64653

GitHub CLI: Unescaped variable components in request URLs could allow path traversal

CVE-2026-64653 is fixed in 2 products on 2 platforms, first by GitHub CLI 2.97.0, released July 31, 2026. It is not reported as exploited. Patch Radar priority: Routine.

RoutineFixed on 2 platforms

CVSS

5.1

Moderate

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0051

43rd percentile

GitHub CLI (gh) is GitHub’s official command line tool. Prior to 2.97.0, some HTTP request URLs interpolate variable path components without percent encoding, allowing URL path metacharacters in attacker-controlled repository or resource values to make gh address a different API endpoint or resource than the user intended. This issue is fixed in version 2.97.0.

Where it's fixed

Product	Fixed in	Fix	Released
Windows apps
GitHub CLI	2.97.0	GitHub CLI 2.97.0	Jul 31, 2026
Linux
gh · opensuse-leap 16.0	2.98.0-bp160.1.1	OPENSUSE-SU-2026:21663-1	Aug 26, 2026

Details

Published
August 6, 2026
Weakness
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64653

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