CVE-2026-57951
Mythic < 3.4.0.60 - Broken Permission Filter in payload_build_step Table
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.
INFO
Published Date :
June 29, 2026, 5:20 p.m.
Last Modified :
June 29, 2026, 5:20 p.m.
Remotely Exploit :
Yes !
Source :
VulnCheck
Affected Products
The following products are affected by CVE-2026-57951
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 |
Solution
- Update Mythic to version 3.4.0.60 or later.
- Review and correct Hasura permission filters.
- Remove the always-satisfied _or condition.
- Verify access controls are enforced.
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CVE-2026-57951 vulnerability anywhere in the article.