What’s Vulnerable › Vulnerabilities

CVE-2025-48938: Prevent GitHub CLI and extensions from executing arbitrary commands from compromised GitHub Enterprise Server

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-05-30 · updated 2026-08-17
• Weakness: CWE-501

Description

go-gh is a collection of Go modules to make authoring GitHub CLI extensions easier. A security vulnerability has been identified in versions prior to 2.12.1 where an attacker-controlled GitHub Enterprise Server could result in executing arbitrary commands on a user's machine by replacing HTTP URLs provided by GitHub with local file paths for browsing. In `2.12.1`, `Browser.Browse()` has been enhanced to allow and disallow a variety of scenarios to avoid opening or executing files on the filesystem without unduly impacting HTTP URLs. No known workarounds are available other than upgrading.

Affected products

• cli go-gh: before 2.12.1 — fixed in 2.12.1

How to fix

Upgrade to a fixed version: cli go-gh 2.12.1. Check the vendor advisory for mitigations.

References

• https://github.com/cli/go-gh/blob/61bf393cf4aeea6d00a6251390f5f67f5b67e727/pkg/browser/browser.go
• https://github.com/cli/go-gh/commit/a08820a13f257d6c5b4cb86d37db559ec6d14577
• https://github.com/cli/go-gh/security/advisories/GHSA-g9f5-x53j-h563

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