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VulnerabilityPublished

CVE-2025-48938: cli go-gh · Trust Boundary Violation

Affects cli go-ghSource CVE Database V5

0

Not known to be exploited · CVSS 2.6 Low : upgrade to 2.12.1 when convenient.

Data as of 26 Oct 2026, 12:55 UTC

CVSS 4.0 base score
2.6Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 45% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.12.1
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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 30 May 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade github.com/cli/go-gh to 2.12.1.

Affected software

ProductAffectedFixed in
Gogithub.com/cli/go-ghpkg:golang/github.com/cli/go-ghOther threatsAffected
  • <2.12.1
Fixed in
  • 2.12.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

The primary and only effective mitigation is to upgrade all instances of go-gh to version 2.12.1 or later, where the Browser.Browse() function has been enhanced to prevent this attack vector. Organizations should audit their development environments to identify usage of go-gh modules and ensure timely patching. Additionally, organizations should enforce strict controls and monitoring on GitHub Enterprise Server configurations, limiting the ability of untrusted parties to influence URL content. Implementing network segmentation and access controls to restrict developer machines' exposure to untrusted GitHub Enterprise Servers can further reduce risk. Security teams should educate developers about the risks of interacting with untrusted or unknown GitHub Enterprise instances. Finally, integrating runtime application self-protection (RASP) or endpoint detection and response (EDR) solutions can help detect anomalous command executions resulting from exploitation attempts.

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.

References

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