Detections
Analytics

SCA: security update for golang.org/x/crypto/ssh (GHSA-89gr-r52h-f8rx)

critical Tenable Cloud Security Plugin ID 443979

Description

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

 - The Verify() method for FIDO/U2F security key types ([email protected], sk-ssh-
 [email protected]) did not check the User Presence flag. Signatures generated without physical touch
 were accepted, allowing unattended use of a hardware security key. To restore the previous behavior,
 return a "no-touch-required" extension in Permissions.Extensions from PublicKeyCallback. (CVE-2026-39831)

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-89gr-r52h-f8rx

Plugin Details

Severity: Critical

ID: 443979

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:C/I:C/A:N

CVSS Score Source: CVE-2026-39831

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:H/I:H/A:N

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: 5/14/2026

Reference Information

CVE: CVE-2026-39831

cwe: CWE-862