CVE-2026-57951: Its-A-Feature Mythic

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Mythic before 3.4.0.60 contains a broken hasura permission filter on the payload_build_step table with an always-satisfied _or condition that bypasses operation-scoped access controls. Authenticated operators and spectators can query payload_build_step to read step_stdout, step_stderr, step_name, and step_description across all operations on the server.

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.