Mythic < 3.4.0.60 - Broken Permission Filter in payload_build_step Table
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
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| its-a-feature | Mythic | before 3.4.0.60 | 3.4.0.60 | Patch available | CNA |
- Mythic Vendorits-a-feature Affected before 3.4.0.60 Fixed in 3.4.0.60 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:its-a-feature:mythic:*:*:*:*:*:*:*:* | before 3.4.0.60 | Vulnerable | its-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
- 2026-10-02 Threatist record created from CVE-2026-57951
- 2026-10-03 Alias added: GHSA-9f32-pf5h-p947
References
Patch 1
More its-a-feature Mythic vulnerabilities
- 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
- CVE-2026-57951 · CVE Program
- CVE-2026-57951 · NVD
- FIRST EPSS
- GHSA-9f32-pf5h-p947 · GitHub Advisory Database · CC BY 4.0
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