CVE-2025-0913 log

Source
Severity Low
Remote No
Type Insufficient validation
Description
os: inconsistent handling of O_CREATE|O_EXCL on Unix and Windows

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.
References
https://github.com/golang/go/issues/73702
https://groups.google.com/g/golang-announce/c/ufZ8WpEsA3A/m/XDxq7uidAgAJ
https://go.dev/doc/devel/release#go1.24.4