Prevent GitHub CLI and extensions from executing arbitrary commands from compromised GitHub Enterprise Server
cve-program · CVE-2025-48938
Publishedgo-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.
Read the publisher's advisoryeuvd · EUVD-2025-16493
Publishedgo-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.
Read the publisher's advisorynvd · CVE-2025-48938
Publishedgo-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.
Read the publisher's advisoryosv · GHSA-g9f5-x53j-h563
Published### Summary A security vulnerability has been identified in `go-gh` 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. ### Details The GitHub CLI and CLI extensions allow users to transition from their terminal for a variety of use cases through the [`Browser` capability in `github.com/cli/go-gh/v2/pkg/browser`](https://github.com/cli/go-gh/blob/61bf393cf4aeea6d00a6251390f5f67f5b67e727/pkg/browser/browser.go): - Using the `-w, --web` flag, GitHub CLI users can view GitHub repositories, issues, pull requests, and more using their web browser - Using the `gh codespace` command set, GitHub CLI users can transition to Visual Studio Code to work with GitHub Codespaces This is done by using URLs provided through API responses from authenticated GitHub hosts when users execute `gh` commands. Prior to `2.12.1`, `Browser.Browse()` would attempt to open the provided URL using a variety of OS-specific approaches regardless of the scheme. An attacker-controlled GitHub Enterprise Server could modify API responses to use a specially tailored local executable path instead of HTTP URLs to resources. This could allow the attacker to execute arbitrary executables on the user's machine. 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: 1. URLs with `http://`, `https://`, `vscode://`, `vscode-insiders://` protocols are supported 1. URLs with `file://` protocol are unsupported 1. URLs matching files or directories on the filesystem are unsupported 1. URLs matching executables in the user's path are unsupported URLs without protocols will be browsable if none of these other conditions apply. As we have more information about use cases, maintainers can expand these capabilities for an improved user experience that allows configuring allowed URL schemes and/or prompt the user for an unexpected user case and confirming whether to continue. ### Impact Successful exploitation could cause users of the attacker-controlled GitHub Enterprise Server to execute arbitrary commands. ### Remediation and Mitigation 1. Upgrade `go-gh` to `2.12.1`
Read the publisher's advisoryosv · GO-2025-3732
PublishedGitHub CLI and extensions can execute arbitrary commands on compromised GitHub Enterprise Server in github.com/cli/go-gh
Read the publisher's advisoryAffected versions, risk and source history
Exploitation and risk
Source statusCISA KEV lists vulnerabilities known to be exploited. FIRST EPSS estimates the likelihood of exploitation in the next 30 days. An unavailable score does not mean zero risk.
Which CVEs have scores here?
This view includes predictions for CVE identifiers explicitly listed in public NuGet advisories. Microsoft release pages have their own prediction coverage. Check source status for the scope and latest checks.
No exploitation or prediction data is available here for these CVEs. This does not mean they are safe or unlikely to be exploited.
cve-program · CVE-2025-48938
PublishedPrevent GitHub CLI and extensions from executing arbitrary commands from compromised GitHub Enterprise Server
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.
- Source published
- 30 May 2025 18:45:59 UTC
- Source modified
- 30 May 2025 20:38:51 UTC
- Saved here
- 23 Oct 2026 15:48:27 UTC
- Source terms
- CVE Program Terms of Use
Original source record · Cite this exact observation · Complete original publisher JSON
Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
CVSS 4.0 · 2.6 CVSS: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
euvd · EUVD-2025-16493
Publishedgo-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 arb…
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.
Additional publisher context
EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.
Original publisher date fields
datePublished: May 30, 2025, 6:45:59 PM
dateUpdated: May 30, 2025, 8:38:51 PM
2 related source bulletins · separate from aliases
openSUSE-SU-2025:15225-1: govulncheck-vulndb-0.0.20250612T141001-1.1 on GA media
CVE-2020-36846 · CVE-2022-31022 · CVE-2023-42818 · CVE-2025-0913 · CVE-2025-1792 · CVE-2025-22874 · CVE-2025-25207 · CVE-2025-25208 · CVE-2025-2571 · CVE-2025-29785 · CVE-2025-3230 · CVE-2025-3260 · CVE-2025-3454 · CVE-2025-3611 · CVE-2025-3913 · CVE-2025-4128 · CVE-2025-4573 · CVE-2025-4673 · CVE-2025-47950 · CVE-2025-48494 · CVE-2025-48495 · CVE-2025-48710 · CVE-2025-48865 · CVE-2025-48938 · CVE-2025-48948 · CVE-2025-48949 · CVE-2025-49011 · CVE-2025-49136 · CVE-2025-49140
msrc_CVE-2025-48938: Prevent GitHub CLI and extensions from executing arbitrary commands from compromised GitHub Enterprise Server
CVE-2025-48938
- Source published
- May 30, 2025, 6:45:59 PM (timezone not stated)
- Source modified
- May 30, 2025, 8:38:51 PM (timezone not stated)
- Saved here
- 15 Nov 2026 04:33:49 UTC
- Source terms
- ENISA EUVD · source terms and attribution apply
Original source record · Cite this exact observation · Complete original publisher JSON
Source: euvd · ENISA EUVD · source terms and attribution apply. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
EUVD CVSS 4.0 · 2.6 CVSS: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
nvd · CVE-2025-48938
Publishedgo-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 arb…
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.
Additional publisher context
NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.
Source analysis status: Analyzed
Weakness classifications: CWE-501
Original publisher date fields
published: 2025-05-30T19:15:29.980
lastModified: 2026-08-17T12:05:03.540
1 source CPE criteria · context only
- cpe:2.3:a:cli:go-gh:*:*:*:*:*:go:*:*
The original JSON retains the logical configuration operators, exclusions and version bounds.
- Source published
- 30 May 2025 19:15:29 UTC
- Source modified
- 17 Aug 2026 12:05:03 UTC
- Saved here
- 25 Oct 2026 02:25:01 UTC
- Source terms
- NIST NVD usage terms; underlying source attribution retained
Original source record · Cite this exact observation · Complete original publisher JSON
Source: nvd · NIST NVD usage terms; underlying source attribution retained. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
CVSS 4.0 · [email protected] · Secondary · 2.6 CVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1 · [email protected] · Primary · 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
osv · GHSA-g9f5-x53j-h563
PublishedPrevent GitHub CLI and extensions from executing arbitrary commands from compromised GitHub Enterprise Server
### Summary A security vulnerability has been identified in `go-gh` 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. ### Details The GitHub CLI and CLI extensions allow users to transition from their terminal for a variety of use cases through the [`Browser` capability in `github.com/cli/go-gh/v2/pkg/browser`](https://github.com/cli/go-gh/blob/61bf393cf4aeea6d00a6251390f5f67f5b67e727/pkg/browser/browser.go): - Using the `-w, --web` flag, GitHub CLI users can view GitHub repositories, issues, pull requests, and more using their web browser - Using the `gh codespace` command set, GitHub CLI users can transition to Visual Studio Code to work with GitHub Codespaces This is done by using URLs provided through API responses from authenticated GitHub hosts when users execute `gh` commands. Prior to `2.12.1`, `Browser.Browse()` would attempt to open the provided URL using a variety of OS-specific approaches regardless of the scheme. An attacker-controlled GitHub Enterprise Server could modify API responses to use a specially tailored local executable path instead of HTTP URLs to resources. This could allow the attacker to execute arbitrary executables on the user's machine. 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: 1. URLs with `http://`, `https://`, `vscode://`, `vscode-insiders://` protocols are supported 1. URLs with `file://` protocol are unsupported 1. URLs matching files or directories on the filesystem are unsupported 1. URLs matching executables in the user's path are unsupported URLs without protocols will be browsable if none of these other conditions apply. As we have more information about use cases, maintainers can expand these capabilities for an improved user experience that allows configuring allowed URL schemes and/or prompt the user for an unexpected user case and confirming whether to continue. ### Impact Successful exploitation could cause users of the attacker-controlled GitHub Enterprise Server to execute arbitrary commands. ### Remediation and Mitigation 1. Upgrade `go-gh` to `2.12.1`
- Source published
- 30 May 2025 15:30:39 UTC
- Source modified
- 10 Sep 2026 03:50:57 UTC
- Saved here
- 24 Oct 2026 13:19:41 UTC
- Source terms
- GitHub Advisory Database · CC-BY-4.0
Original source record · Cite this exact observation · Complete original publisher JSON
Source: osv · GitHub Advisory Database · CC-BY-4.0. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
Publisher rating · MODERATE
osv · GO-2025-3732
PublishedGitHub CLI and extensions can execute arbitrary commands on compromised GitHub Enterprise Server in github.com/cli/go-gh
GitHub CLI and extensions can execute arbitrary commands on compromised GitHub Enterprise Server in github.com/cli/go-gh
- Source published
- 3 Jun 2025 17:28:53 UTC
- Source modified
- 4 Feb 2026 02:31:40 UTC
- Saved here
- 24 Oct 2026 13:19:41 UTC
- Source terms
- OSV · upstream source license applies
Original source record · Cite this exact observation · Complete original publisher JSON
Source: osv · OSV · upstream source license applies. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.