CVE-2026-57951: its-a-feature Mythic · Incorrect Authorization
Affects its-a-feature MythicSource CVE Database V5
Not known to be exploited · CVSS 7.1 High : upgrade to 3.4.0.60 soon.
Data as of 11 Nov 2026, 23:24 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 7.1 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 6.5 |
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 38% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 3.4.0.60
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 29 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.
What to do
Upgrade its-a-feature Mythic to 3.4.0.60.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| its-a-featureMythic | Affected
| Fixed in
|
GitHubMythicpkg:github/MythicOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
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.
References
- github.com/its-a-feature/Mythic/releases/tag/v3.4.0.60 (opens in a new tab)
- github.com/its-a-feature/Mythic/issues/563 (opens in a new tab)
- github.com/its-a-feature/Mythic/commit/82648e8241b800a32e1882afc310e7316d98ebaa (opens in a new tab)
- vulncheck.com/advisories/mythic-broken-permission-filter-in-payload-build-step-table (opens in a new tab)