SCA: security update for github.com/kopia/kopia (GHSA-2q4c-3mrw-63c3)

critical Tenable Self-Hosted Container Security Plugin ID 442138

Description

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

- Kopia is a cross-platform backup tool for Windows, macOS, and Linux with fast incremental backups, client-
side end-to-end encryption, compression, and data deduplication. Prior to 0.23.0, Kopia's HTTP server
started with --without-password accepts unauthenticated requests to /api/v1/repo/exists and forwards
attacker-supplied SFTP storage configuration to blob.NewStorage, where externalSSH: true and sshArguments
containing -oProxyCommand=<cmd> can cause exec.CommandContext("ssh") to invoke the command through
OpenSSH. This issue is fixed in version 0.23.0. (CVE-2026-45695)

Solution

Update the github.com/kopia/kopia library and its related packages to version 0.23.0 or later.

See Also

https://github.com/advisories/GHSA-2q4c-3mrw-63c3

Plugin Details

Severity: Critical

ID: 442138

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 5/19/2026

Updated: 7/20/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.92

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-2026-45695

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/19/2026

Vulnerability Publication Date: 5/19/2026

Reference Information

CVE: CVE-2026-45695