ME News reports that, as of November 1 (UTC+8), according to the latest weekly report from Cardano ecosystem governance organization Intersect, a critical Linux kernel vulnerability, identified as CVE-2026-98432, may affect multiple Linux distributions including Ubuntu, with a CVSS security risk score of 9.8 out of 10.
Intersect warns Cardano stake pool operators (SPOs) to immediately check the Linux kernel versions used by their block production and relay nodes, and to update and restart their servers as soon as security patches are released by the respective distributions.
Some Linux distributions have already released patch updates, but others, including Ubuntu, are still preparing their updates. Intersect stated that it will continue to provide security guidance through its official X account and the staking pool operator community. (Source: ChainCatcher)
Cardano Ecosystem Group Warns of Critical Linux Kernel Vulnerability with a 9.8 Risk Score
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Summary
On November 1, 2026, the Cardano ecosystem group Intersect issued a vulnerability alert warning of a critical Linux kernel flaw, CVE-2026-98432, with a CVSS score of 9.8. The vulnerability affects Ubuntu and other Linux distributions. Stake pool operators are urged to verify their kernel versions and apply updates as soon as patches become available. Some distributions have already released fixes, while others are still preparing them. Intersect will provide updates via its official X account and the SPO community. The swift response underscores the ecosystem’s growth and commitment to security.
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