Mythic < 3.4.0.60 - Unauthorized C2 Profile Configuration Access via Unverified Payload UUID
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- 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-862.
Summary
Mythic before 3.4.0.60 contains an authorization bypass vulnerability in four REST endpoints (c2profile_config_check_webhook, c2profile_redirect_rules_webhook, c2profile_get_ioc_webhook, c2profile_sample_message_webhook) that fail to verify payload ownership. An operator in one operation can invoke these endpoints with a known payload UUID from another operation to access that operation's C2 profile configuration including encryption keys and callback parameters.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- 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-2026-41717 Mythic < 3.4.0.60 - Broken Permission Filter in payload_build_step TablePriority MEDIUM 64
- 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-2026-57952
- 2026-10-03 Alias added: GHSA-vq63-9qrm-qv35
References
Patch 1
More its-a-feature Mythic vulnerabilities
- TI-2026-41717 Mythic < 3.4.0.60 - Broken Permission Filter in payload_build_step Table CVSS 4.0HIGH 7.1
- 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-2026-57952 · CVE Program
- CVE-2026-57952 · NVD
- FIRST EPSS
- GHSA-vq63-9qrm-qv35 · GitHub Advisory Database · CC BY 4.0
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