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Golang: stdlib: security update to 1.26.9stdlib: security update to 1.27.2

high Tenable Self-Hosted Container Security Plugin ID 473929

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - On Windows, when the target of Root.Mkdir or Root.MkdirAll is a junction pointing to an empty location,
 the operation can create a directory at the junction target even when that target is located outside the
 root. This only applies to operations where the last path component is a junction (path/to/junction, but
 not path/junction/target). (CVE-2026-56857)

Solution

Update the stdlib library and its related packages to version 1.26.9 or later.

See Also

https://pkg.go.dev/vuln/GO-2026-6604

Plugin Details

Severity: High

ID: 473929

Version: Revision 1.1

Type: Local

Family: Golang

Published: 10/9/2026

Updated: 10/9/2026

Risk Information

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-56857

CVSS v3

Risk Factor: High

Base Score: 8.4

Temporal Score: 7.3

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/8/2026

Vulnerability Publication Date: 10/8/2026

Reference Information

CVE: CVE-2026-56857