CVE-2026-57953: Its-A-Feature Mythic

Medium severity, CVSS 5.4. EPSS: 0.4% chance of exploitation in the next 30 days.

Mythic before 3.4.0.60 contains an authorization bypass vulnerability that allows authenticated spectator-role users to perform unauthorized write operations by accessing the eventing_import_automatic_webhook endpoint registered under spectator-permitted middleware. Attackers with spectator role can exploit this misconfigured access control to create and delete automation workflows, making unauthorized modifications to operation automation configuration and EventGroups.

Affected products

• Its-A-Feature Mythic: before 3.4.0.60 (fixed in 3.4.0.60)

Published 2026-06-29. Last modified 2026-07-14.