cvedb.io
CVE-2026-33898
HIGH · CVSS 8.8
EPSS exploitation probability: 0%
Published 2026-03-27T00:16:23.333 · Last modified 2026-06-17T10:38:16.857

Summary

Incus is a system container and virtual machine manager. Prior to version 6.23.0, the web server spawned by `incus webui` incorrectly validates the authentication token such that an invalid value will be accepted. `incus webui` runs a local web server on a random localhost port. For authentication, it provides the user with a URL containing an authentication token. When accessed with that token, Incus creates a cookie persisting that token without needing to include it in subsequent HTTP requests. While the Incus client correctly validates the value of the cookie, it does not correctly validate the token when passed int the URL. This allows for an attacker able to locate and talk to the temporary web server on localhost to have as much access to Incus as the user who ran `incus webui`. Thi

Affected products

linuxcontainers — incus

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.