Detections
Analytics

Golang: stdlib: security update to 1.25.11stdlib: security update to 1.26.4

high Tenable Cloud Security Plugin ID 442594

Description

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

 - Decoding a maliciously-crafted MIME header containing many invalid encoded-words can consume excessive
 CPU. (CVE-2026-42504)

Solution

Update the stdlib library and its related packages to version 1.25.11 or later.

See Also

https://pkg.go.dev/vuln/GO-2026-5038

Plugin Details

Severity: High

ID: 442594

Version: Revision 1.3

Type: Local

Family: Golang

Published: 6/3/2026

Updated: 6/8/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-42504

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/2/2026

Vulnerability Publication Date: 6/2/2026

Reference Information

CVE: CVE-2026-42504