Improper Validation of Integrity Check Value Affecting github.com/lxc/incus/client package, versions <6.23.0


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.18% (8th percentile)

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  • Snyk IDSNYK-GOLANG-GITHUBCOMLXCINCUSCLIENT-15812313
  • published30 Mar 2026
  • disclosed27 Mar 2026
  • creditwl2018

Introduced: 27 Mar 2026

CVE-2026-33542  (opens in a new tab)
CWE-354  (opens in a new tab)

How to fix?

Upgrade github.com/lxc/incus/client to version 6.23.0 or higher.

Overview

Affected versions of this package are vulnerable to Improper Validation of Integrity Check Value inadequate validation of the combined fingerprint during image downloads from simplestreams servers. An attacker can cause users to deploy malicious images by providing manipulated image files from an attacker-controlled server, potentially leading to image cache poisoning and execution of attacker-controlled code. This is only exploitable if the environment lacks restricted.image.servers configuration or equivalent network restrictions, and the attacker can predict which image will be used before it is cached.

CVSS Base Scores

version 4.0
version 3.1