Detections
Analytics

SCA: security update for golang.org/x/crypto/ssh (GHSA-rm3j-f69w-wqmq)

critical Tenable Self-Hosted Container Security Plugin ID 443947

Description

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

 - When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the
 internal payload size calculation caused the write loop to spin indefinitely, sending empty packets
 without making progress. The size comparison now uses int64 to prevent truncation. (CVE-2026-39834)

Solution

Update the golang.org/x/crypto/ssh library and its related packages to version 0.52.0 or later.

See Also

https://github.com/advisories/GHSA-rm3j-f69w-wqmq

Plugin Details

Severity: Critical

ID: 443947

Version: Revision 1.2

Type: Local

Family: SCA Checks

Published: 6/26/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.62

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2026-39834

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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: 6/25/2026

Vulnerability Publication Date: 5/12/2026

Reference Information

CVE: CVE-2026-39834

cwe: CWE-190