CVE-2026-39822

Description

On Unix systems, opening a file in an os.Root improperly follows symlinks to locations outside of the Root when the final path component of the a path is a symbolic link and the path ends in /. For example, 'root.Open("symlink/")' will open "symlink" even when "symlink" is a symbolic link pointing outside of the root.

CVSS Vector

References

• https://go.dev/cl/797880
• https://go.dev/issue/79005
• https://groups.google.com/g/golang-announce/c/OrmQE_Yp5Sc
• https://pkg.go.dev/vuln/GO-2026-4970