CVE-2026-40864 | jupyterhub up to 5.4.4 JSON API /hub/spawn cross-site request forgery (GHSA-m68r-v472-jgq9)
A vulnerability, which was classified as problematic, was found in jupyterhub up to 5.4.4. Affected is an unknown function of the file /hub/spawn of the component JSON API. Such manipulation leads to cross-site request forgery.
This vulnerability is documented as CVE-2026-40864. The attack can be executed remotely. There is not any exploit available.
You should upgrade the affected component.