Detections
Analytics

SCA: security update for asyncssh (GHSA-2wxc-x7rj-hg8f)

high Tenable Cloud Security Plugin ID 446356

Description

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

 - AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2
 protocol on top of the Python asyncio framework. Prior to 2.23.1, a malicious SSH server can write
 arbitrary files on the asyncssh SCP client's filesystem by sending filenames containing ../ traversal
 sequences because _parse_cd_args in scp.py returns server-provided names verbatim and _recv_files joins
 them to the destination path without enforcing the target directory boundary. This issue is fixed in
 version 2.23.1. (CVE-2026-54591)

Solution

Update the asyncssh library and its related packages to version 2.23.1 or later.

See Also

https://github.com/advisories/GHSA-2wxc-x7rj-hg8f

Plugin Details

Severity: High

ID: 446356

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 8/26/2026

Updated: 8/26/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.68

Vendor

Vendor Severity: High

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-2026-54591

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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: 8/26/2026

Vulnerability Publication Date: 7/8/2026

Reference Information

CVE: CVE-2026-54591

cwe: CWE-22