Cardano ecosystem organization Intersect warns of a serious Linux kernel vulnerability, with a risk score as high as 9.8

According to the latest weekly report released by the Cardano ecosystem governance organization Intersect, a serious Linux kernel vulnerability numbered CVE-2026-98432 may affect multiple Linux distributions, including Ubuntu, with a CVSS security risk score as high as 9.8 (out of a maximum of 10).

Intersect warns Cardano stake pool operators (SPO) to immediately check the Linux kernel versions used by their block production nodes and relay nodes, and to update and restart their servers as soon as security patches are released for the corresponding distributions.

Currently, some Linux distributions have provided fix patches, but some distributions, including Ubuntu, are still preparing updates. Intersect stated that it will continue to release security guidelines through its official X account and the stake pool operator community.