by Kastro
Paper/Archive/CVE-2025-48938

CVE-2025-48938

cli go-gh — Prevent GitHub CLI and extensions from executing arbitrary commands from compromised GitHub Enterprise Server

EPSS 0.6%CVSS 9.8
critical.is priorityof 100
39
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 46.9.469 × 209.4No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
go-gh< 2.12.1–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub_M (CNA)2.6CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:U
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

refgithub.com/cli/go-gh/security/advisories/GHSA-g9f5-x53j-h563refgithub.com/cli/go-gh/commit/a08820a13f257d6c5b4cb86d37db559ec6d14577refgithub.com/cli/go-gh/blob/61bf393cf4aeea6d00a6251390f5f67f5b67e727/pkg/browser/browser.go