CVE-2026-39822
Published: July 11, 2026Last modified: July 14, 2026
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | go | Fixed (1.25.12-r0) |
| 25 LTS | go | Fixed (1.25.12-r0) | |
| Stream | go | Fixed (1.26.5-r0) | |
| Hardened Containers | 23 LTS | go | Fixed (1.25.12-r0) |
| 25 LTS | go | Fixed (1.25.12-r0) | |
| Stream | go | Fixed (1.26.5-r0) |