Auth bypass in Its-A-Feature Mythic
CVE-2026-57952
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (19.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Its-A-Feature Mythic — versions 0
Weakness classification (CWE)
References
- github.com/its-a-feature/Mythic/commit/82648e8241b800a32e1882afc310e7316d98ebaa (Patch, patch)
- github.com/its-a-feature/Mythic/issues/564 (issue-tracking, Issue Tracking)
- github.com/its-a-feature/Mythic/releases/tag/v3.4.0.60 (release-notes, Release Notes)
- www.vulncheck.com/advisories/mythic-unauthorized-c2-profile-configuration-acces… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-57952?
- CVE-2026-57952 is a medium-severity vulnerability in Its-A-Feature Mythic, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-06-29.
- How severe is CVE-2026-57952?
- Medium severity. CVSS v3 base score is 5.3 out of 10.