CVE-2026-57951
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk16th percentile — higher than 16% of all known CVEs
Summary
A vulnerability in Mythic before version 3.4.0.60 is caused by 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.
Risk Assessment
The risk involves unauthorized access to sensitive build step output and metadata, potentially exposing confidential operational information and enabling further attacks.
Recommendation
Immediately upgrade Mythic to version 3.4.0.60 or later, which fixes the broken Hasura permission filter.
Original NVD description (English source)
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.