Is CVE-2026-89098 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-89098?

CVE-2026-89098 has a CVSS v3 severity of MEDIUM (5.5).

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CVE-2026-89098

Description

A flaw was found in nfs-utils. The fsidd daemon improperly handles input received over its local domain socket by relying on program assertions to verify command arguments. A local user can exploit this vulnerability by sending a malformed request lacking the required arguments to trigger an assertion failure. This causes the daemon to crash, resulting in a Denial of Service (DoS) for filesystem identifier lookup services until restarted.