CVE-2025-68119
CVE-2025-68119 is a high-severity vulnerability in Golang Go with a CVSS 3.x base score of 7.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: High (CVSS 3.x base score 7.0)
- EPSS exploit prediction: 0% (26th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-206446
- Weakness: CWE-787
- Affected product: Golang Go
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2025-68119?
- 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.
- How severe is CVE-2025-68119?
- CVE-2025-68119 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2025-68119 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-68119?
- CVE-2025-68119 affects Golang Go. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-68119?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2025-68119 have an EU (EUVD) identifier?
- Yes. CVE-2025-68119 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206446.
- When was CVE-2025-68119 published?
- CVE-2025-68119 was published on 2026-01-28 and last updated on 2026-06-17.
References
- https://go.dev/cl/736710
- https://go.dev/issue/77099
- https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc
- https://pkg.go.dev/vuln/GO-2026-4338
Affected products (1)
- cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
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