Protection mechanism failure in Go programming language - CVE-2025-68119
Published: March 16, 2026
Vulnerability identifier: #VU124037
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-68119
CWE-ID: CWE-693
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Google
Affected software:
Go programming language
Go programming language
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to usage of unsafe options in Go toolchain. On systems with Mercurial installed (hg) downloading modules from non-standard sources can lead to unexpected code execution due to how external VCS are constructed. A remote attacker can trick the victim into downloading and executing arbitrary code on the target system.
How to mitigate CVE-2025-68119
Install updates from vendor's website.