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Vulnerability record · CVE-2026-57953 · published 29 June 2026

CVE-2026-57953: Its-a-feature mythic incorrect authorization vulnerability

IIts A Feature · Mythic

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.

5.3 CVSS 4.0 Medium EPSS 0.44% · top 64.4% CWE-863 · Incorrect authorization
5.3CVSS 4.0 base score
0.44%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
14 Jul 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/its-a-feature/Mythic/commit/82648e8241b800a32e1882afc310e7316d98ebaa Patch
https://github.com/its-a-feature/Mythic/issues/565 Issue Tracking
https://github.com/its-a-feature/Mythic/releases/tag/v3.4.0.60 Release Notes
https://www.vulncheck.com/advisories/mythic-unauthorized-automation-workflow-modification-via-eventing-import-automatic- Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-57953), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.