CVE-2025-68119

Unexpected code execution when invoking toolchain in cmd/go

State
Published
Severity
7.0 High
Published
Jan 28, 2026
Updated
Feb 26, 2026
Reserved
Dec 15, 2025

Read the record on cve.org

Description

Downloading and building modules with malicious version strings can cause local code execution. On systems with Mercurial (hg) installed, downloading modules from non-standard sources (e.g., custom domains) can cause unexpected code execution due to how external VCS commands are constructed. This issue can also be triggered by providing a malicious version string to the toolchain. On systems with Git installed, downloading and building modules with malicious version strings can allow an attacker to write to arbitrary files on the filesystem. This can only be triggered by explicitly providing the malicious version strings to the toolchain and does not affect usage of @latest or bare module paths.

Scores

CVSSScoreVectorSource
3.17.0 HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HCISA-ADP

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
cmd/goGo toolchain
  • 1.25.0 to before 1.25.6Affected

References

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