PT-2026-53671 · Its A Feature · Mythic

George Chen · Published 2026-06-29 · Updated 2026-06-29 · CVE-2026-57953

Mitre

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Mythic before 3.4.0.60 contains an authorization bypass vulnerability that allows authenticated spectator-role users to perform unauthorized write operations by accessing the eventing import automatic webhook endpoint registered under spectator-permitted middleware. Attackers with spectator role can exploit this misconfigured access control to create and delete automation workflows, making unauthorized modifications to operation automation configuration and EventGroups.

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

CVE-2026-57953

Affected Products

Mythic

References · 5

• https://github.com/its-a-feature/Mythic/commit/82648e8241b800a32e1882afc310e7316d98ebaa · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-57953 · Security Note
• https://github.com/its-a-feature/Mythic/releases/tag/v3.4.0.60 · Note
• https://github.com/its-a-feature/Mythic/issues/565 · Note
• https://vulncheck.com/advisories/mythic-unauthorized-automation-workflow-modification-via-eventing-import-automatic-webhook-endpoint · Note