CVE-2025-0913

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.

Weakness classification

• nvd@nist.gov: CWE-59

Primary references

• security@golang.org — Issue Tracking
• security@golang.org — Issue Tracking
• security@golang.org — Mailing List
• security@golang.org — Vendor Advisory