CVEvulnerability
CVE-2026-39822
7.8 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-07-08
- Last modified
- 2026-10-25
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-61
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.
Affected configurations
• golang go (>= 1.24.0 < 1.25.12)
• golang go (>= 1.26.0 < 1.26.5)
• golang go 1.27
Related
Weakness · CWE (1)
- CWE-61 UNIX Symbolic Link (Symlink) Following weakness
References
- https://go.dev/cl/797880 Patch
- https://go.dev/issue/79005 Issue Tracking, Patch
- https://groups.google.com/g/golang-announce/c/OrmQE_Yp5Sc Mailing List, Patch, Vendor Advisory
- https://pkg.go.dev/vuln/GO-2026-4970 Vendor Advisory