Golang: stdlib: security update to 1.25.9stdlib: security update to 1.26.2

high Tenable Cloud Security Plugin ID 439976

Description

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

- If one side of the TLS connection sends multiple key update messages post-handshake in a single record,
the connection can deadlock, causing uncontrolled consumption of resources. This can lead to a denial of
service. This only affects TLS 1.3. (CVE-2026-32283)

Solution

Update the stdlib library and its related packages to version 1.25.9 or later.

See Also

https://pkg.go.dev/vuln/GO-2026-4870

Plugin Details

Severity: High

ID: 439976

Version: Revision 1.9

Type: Local

Family: Golang

Published: 4/8/2026

Updated: 6/8/2026

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-32283

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: 4/7/2026

Vulnerability Publication Date: 4/7/2026

Reference Information

CVE: CVE-2026-32283