Vulnerability Description
os.OpenFile(path, os.O_CREATE|O_EXCL) behaved differently on Unix and Windows systems when the target path was a dangling symlink. On Unix systems, OpenFile with O_CREATE and O_EXCL flags never follows symlinks. On Windows, when the target path was a symlink to a nonexistent location, OpenFile would create a file in that location. OpenFile now always returns an error when the O_CREATE and O_EXCL flags are both set and the target path is a symlink.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Golang | Go | < 1.23.10 |
| Microsoft | Windows | - |
Related Weaknesses (CWE)
References
- https://go.dev/cl/672396Issue Tracking
- https://go.dev/issue/73702Issue Tracking
- https://groups.google.com/g/golang-announce/c/ufZ8WpEsA3AMailing List
- https://pkg.go.dev/vuln/GO-2025-3750Vendor Advisory
FAQ
What is CVE-2025-0913?
CVE-2025-0913 is a vulnerability with a CVSS score of 5.5 (MEDIUM). os.OpenFile(path, os.O_CREATE|O_EXCL) behaved differently on Unix and Windows systems when the target path was a dangling symlink. On Unix systems, OpenFile with O_CREATE and O_EXCL flags never follow...
How severe is CVE-2025-0913?
CVE-2025-0913 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-0913?
Check the references section above for vendor advisories and patch information. Affected products include: Golang Go, Microsoft Windows.