Local Code Execution Vulnerability in Mercurial and Git Products by Go
CVE-2025-68119

7HIGH

Key Information:

Vendor

Go Toolchain

Status
Cmd/go
Vendor
CVE Published:
28 January 2026

What is CVE-2025-68119?

The vulnerability enables local code execution on systems where Mercurial or Git is installed when modules with malicious version strings are downloaded and built. This threat arises when users interact with non-standard sources or explicit version strings, leading to unintended command execution or unauthorized writing to the filesystem. Developers and system administrators are urged to review their practices surrounding external module sourcing and version handling to mitigate the risks associated with this vulnerability.

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Affected Version(s)

cmd/go 1.25.0 < 1.25.6

References

https://go.dev/cl/736710
https://go.dev/issue/77099
https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc

CVSS V3.1

Score:
7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

splitline (@splitline) from DEVCORE Research Team
JSON
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