CVE-2026-23954: GO-2026-4357 - Incus container image templating arbitrary host file read and write in github.com/lxc/incus

CVE-2026-23954 · Severity: low · CVSS 3.1 · Published 2026-02-05

Incus container image templating arbitrary host file read and write in github.com/lxc/incus

Technologies: github.com/lxc/incus (Go), github.com/lxc/incus/v6 (Go), github.com/lxc/incus/v6/cmd/incusd (Go). Vendors: Go.

Quick answers

Is CVE-2026-23954 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-23954 being exploited in the wild.
How severe is CVE-2026-23954?
Low severity, with a CVSS score of 3.1, published 5 February 2026.
Which products and versions are affected?
github.com/lxc/incus (Go) SEMVER:introduced=0; github.com/lxc/incus/v6 (Go) SEMVER:introduced=6.1.0; github.com/lxc/incus/v6/cmd/incusd (Go) SEMVER:introduced=0.
Is there a fix for CVE-2026-23954?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-23954?
Check whether you run github.com/lxc/incus (Go), github.com/lxc/incus/v6 (Go) or github.com/lxc/incus/v6/cmd/incusd (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • github.com/lxc/incus (Go) SEMVER:introduced=0
  • github.com/lxc/incus/v6 (Go) SEMVER:introduced=6.1.0
  • github.com/lxc/incus/v6/cmd/incusd (Go) SEMVER:introduced=0

Identifiers

  • CVE-2026-23954
  • GHSA-7f67-crqm-jgh7
  • GO-2026-4357

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