Detections
Analytics

Golang: stdlib: security update to 1.26.1

high Tenable Cloud Security Plugin ID 438456

Description

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

 - When verifying a certificate chain which contains a certificate containing multiple email address
 constraints which share common local portions but different domain portions, these constraints will not be
 properly applied, and only the last constraint will be considered. (CVE-2026-27137)

Solution

Update the stdlib library and its related packages to version 1.26.1 or later.

See Also

https://pkg.go.dev/vuln/GO-2026-4599

Plugin Details

Severity: High

ID: 438456

Version: Revision 1.4

Type: Local

Family: Golang

Published: 3/7/2026

Updated: 5/12/2026

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2026-27137

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/6/2026

Vulnerability Publication Date: 3/5/2026

Reference Information

CVE: CVE-2026-27137