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{"bugzilla": {"description": "cmd/go: cmd/go: Local code execution and arbitrary file write via malicious module version strings", "id": "2434438", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2434438"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-78", "details": ["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.", "A flaw was found in Golang's cmd/go module. This vulnerability allows a local attacker to achieve local code execution by downloading and building modules with specially crafted malicious version strings. On systems with Mercurial (hg) installed, this can occur when downloading modules from non-standard sources due to how external Version Control System (VCS) commands are constructed. Additionally, on systems with Git installed, providing malicious version strings to the toolchain can enable an attacker to write to arbitrary files on the filesystem. This issue is triggered by explicitly supplying these malicious version strings."], "mitigation": {"lang": "en:us", "value": "No mitigation is currently available that meets Red Hat Product Security's standards for usability, deployment, applicability, or stability."}, "name": "CVE-2025-68119", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "golang", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "go-toolset:rhel8/golang", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "golang", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-01-28T19:30:30Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-68119\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-68119\nhttps://go.dev/cl/736710\nhttps://go.dev/issue/77099\nhttps://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc\nhttps://pkg.go.dev/vuln/GO-2026-4338"], "statement": "This issue is rated Moderate severity by Red Hat Product Security, because exploitation requires non-standard and intentional user behavior. \nThe attacker must explicitly supply a specially crafted module version string, which does not occur during normal Go module usage such as @latest or standard module paths, making the attack complexity high. \nAdditionally, user interaction is required, as the vulnerable behavior is only triggered when a user manually invokes the Go toolchain to download or build the malicious module.\nWhile successful exploitation can result in local code execution or arbitrary file modification, the combination of local access, manual input, and uncommon usage patterns significantly limits the likelihood of exploitation in typical environments.", "threat_severity": "Moderate"}