---
id: CVE-2026-57951
title: Mythic < 3.4.0.60 - Broken Permission Filter in payload_build_step Table
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 pay…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-863
vendor: its-a-feature
product: Mythic
affected:
  - Mythic < 3.4.0.60
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-07-01T14:12:06.329432Z'
exploitAvailable: true
published: '2026-06-29'
updated: '2026-11-08'
sourceUpdated: '2026-11-08T14:06:38.247Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-57951'
references:
  - url: 'https://github.com/its-a-feature/Mythic/releases/tag/v3.4.0.60'
    label: Mythic 3.4.0.60 Release Notes
  - url: 'https://github.com/its-a-feature/Mythic/issues/563'
    label: Researcher Disclosure
  - url: >-
      https://github.com/its-a-feature/Mythic/commit/82648e8241b800a32e1882afc310e7316d98ebaa
    label: Patch Commit
  - url: >-
      https://www.vulncheck.com/advisories/mythic-broken-permission-filter-in-payload-build-step-table
tags:
  - cve.org
  - exploit-available
epss: 0.00434
epssPercentile: 0.37922
ingestedAt: '2026-11-08T14:51:22.317Z'
---

## Overview

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.

## Affected

- `Mythic < 3.4.0.60`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.