CVE-2025-61731

A flaw was found in cmd/go. An attacker can exploit this by building a malicious Go source file that uses the '#cgo pkg-config:' directive. This allows the attacker to write to an arbitrary file with partial control over its content, by providing a '--log-file' argument to the pkg-config command. This vulnerability can lead to arbitrary file write.

This vulnerability is Important rather than Moderate because compiling a malicious Go source file can cause pkg-config to create or append data to files at attacker-chosen locations, subject to the permissions of the build user. This can enable unintended filesystem modifications during the build process, which can lead to broken builds, alter tool behavior, and poison caches or artifacts, even without direct code execution.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.