CVE-2026-33898: GO-2026-4879 - Local Incus UI web server vulnerable to nuthentication bypass in github.com/lxc/incus

Quick answers

Is CVE-2026-33898 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-33898 being exploited in the wild.

How severe is CVE-2026-33898?

Low severity, with a CVSS score of 3.1, published 7 April 2026.

Which products and versions are affected?

github.com/lxc/incus (Go) SEMVER:introduced=0; github.com/lxc/incus/v6 (Go) SEMVER:introduced=0,fixed=6.23.0; github.com/lxc/incus/v6/cmd/incus (Go) SEMVER:introduced=0,fixed=6.23.0.

Is there a fix for CVE-2026-33898?

Yes. github.com/lxc/incus/v6 (Go): upgrade to 6.23.0 or later; github.com/lxc/incus/v6/cmd/incus (Go): upgrade to 6.23.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Am I affected by CVE-2026-33898?

Check whether you run github.com/lxc/incus (Go), github.com/lxc/incus/v6 (Go) or github.com/lxc/incus/v6/cmd/incus (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.

How to fix

• github.com/lxc/incus/v6 (Go): upgrade to 6.23.0 or later

  go get github.com/lxc/incus/v6@v6.23.0

• github.com/lxc/incus/v6/cmd/incus (Go): upgrade to 6.23.0 or later

  go get github.com/lxc/incus/v6/cmd/incus@v6.23.0

Affected products

• github.com/lxc/incus (Go) SEMVER:introduced=0
• github.com/lxc/incus/v6 (Go) SEMVER:introduced=0,fixed=6.23.0
• github.com/lxc/incus/v6/cmd/incus (Go) SEMVER:introduced=0,fixed=6.23.0

Identifiers

• CVE-2026-33898
• GHSA-453r-g2pg-cxxq
• GO-2026-4879