CVE-2026-89605 and is rated High severity with a CVSS score of 7.8. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.
CISA KEVNot listedBased on the latest collected catalog
EPSS0.2%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships
Overview
What is CVE-2026-89605?
In the Linux kernel, the following vulnerability has been resolved:
ecryptfs: release message context on send failure
ecryptfs_send_message_locked() moves a message context from the free list to the allocated list before sending the request to the userspace daemon.
If ecryptfs_send_miscdev() fails, the context is left on the allocated list and cannot be reused. Move it back to the free list on failure and clear the caller's pointer.