CVE-2026-11993

Mattermost versions 11.9.x ≤ 11.9.0 , 11.8.x ≤ 11.8.4 , 11.7.x ≤ 11.7.7 , and 10.11.x ≤ 10.11.22 are affected by a resource-exhaustion flaw in the file content indexing subsystem. The root cause is a failure to properly enforce the limit of concurrent files being processed and to handle failed fi...