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TI-2026-41717 Aliases CVE-2026-57951GHSA-9f32-pf5h-p947

Mythic < 3.4.0.60 - Broken Permission Filter in payload_build_step Table

Priority MEDIUM 64CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-863.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00434 37th percentileScored 2026-11-07
Fix Fixed Mythic (its-a-feature): 3.4.0.60

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
its-a-featureMythicbefore 3.4.0.603.4.0.60Patch availableCNA
  • Mythic Vendorits-a-feature Affected before 3.4.0.60 Fixed in 3.4.0.60 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:its-a-feature:mythic:*:*:*:*:*:*:*:*before 3.4.0.60Vulnerableits-a-feature
  • cpe:2.3:a:its-a-feature:mythic:*:*:*:*:*:*:*:* Versions before 3.4.0.60 Vulnerable ·its-a-feature

Remediation

  • Fix · CNA Mythic (its-a-feature) Fixed in 3.4.0.60

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    its-a-feature Mythic 3.4.0.60

    3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2026-41718 Mythic < 3.4.0.60 - Unauthorized C2 Profile Configuration Access via Unverified Payload UUIDPriority LOW 27
    • TI-2026-41719 Mythic < 3.4.0.60 - Unauthorized Automation Workflow Modification via eventing_import_automatic_webhook EndpointPriority LOW 24

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-57951
  2. 2026-10-03 Alias added: GHSA-9f32-pf5h-p947

References

  • TI-2026-41718 Mythic < 3.4.0.60 - Unauthorized C2 Profile Configuration Access via Unverified Payload UUID CVSS 4.0MEDIUM 6.0
  • TI-2026-41719 Mythic < 3.4.0.60 - Unauthorized Automation Workflow Modification via eventing_import_automatic_webhook Endpoint CVSS 4.0MEDIUM 5.3

Sources