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SCA: security update for github.com/openpubkey/opkssh (GHSA-56wx-66px-9j66)

critical Tenable Cloud Security Plugin ID 434687

Description

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

 - Versions of OpenPubkey library prior to 0.10.0 contained a vulnerability that would allow a specially
 crafted JWS to bypass signature verification. As OPKSSH depends on the OpenPubkey library for
 authentication, this vulnerability in OpenPubkey also applies to OPKSSH versions prior to 0.5.0 and would
 allow an attacker to bypass OPKSSH authentication. (CVE-2025-4658)

See Also

https://github.com/advisories/GHSA-56wx-66px-9j66

Plugin Details

Severity: Critical

ID: 434687

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 8/19/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.84

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2025-4658

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.1

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/13/2025

Vulnerability Publication Date: 5/13/2025

Reference Information

CVE: CVE-2025-4658

cwe: CWE-305