CVE-2026-98525

A flaw was found in the Linux kernel's Management Component Transport Protocol (MCTP) subsystem. When looking up preallocated communication tags, the kernel fails to verify that a requested tag belongs to the calling socket and instead searches across the entire network namespace. A local attacker can exploit this flaw to consume another socket's preallocated tags, leading to communication disruption or unauthorized message transmission.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.