An information disclosure vulnerability exists in the MISP AuthKey edit functionality. When a validation error occurs during an AuthKey edit request, the user dropdown was populated using the attacker-controlled AuthKey.user_id value from the submitted request data. An authenticated user with permission to edit an AuthKey could submit arbitrary user IDs and observe the returned dropdown data, allowing enumeration of user email addresses. The issue is fixed by deriving the dropdown user from the persisted AuthKey owner instead of the request body.

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History

Mon, 15 Jun 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 13 Jun 2026 00:45:00 +0000

Type Values Removed Values Added
First Time appeared Misp
Misp misp
Vendors & Products Misp
Misp misp

Fri, 12 Jun 2026 21:00:00 +0000

Type Values Removed Values Added
Description An information disclosure vulnerability exists in the MISP AuthKey edit functionality. When a validation error occurs during an AuthKey edit request, the user dropdown was populated using the attacker-controlled AuthKey.user_id value from the submitted request data. An authenticated user with permission to edit an AuthKey could submit arbitrary user IDs and observe the returned dropdown data, allowing enumeration of user email addresses. The issue is fixed by deriving the dropdown user from the persisted AuthKey owner instead of the request body.
Title MISP AuthKey edit endpoint allows authenticated user email enumeration
Weaknesses CWE-200
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: CIRCL

Published:

Updated: 2026-06-15T17:55:07.530Z

Reserved: 2026-06-12T20:46:44.530Z

Link: CVE-2026-54396

cve-icon Vulnrichment

Updated: 2026-06-15T17:55:03.872Z

cve-icon NVD

Status : Deferred

Published: 2026-06-12T21:16:25.423

Modified: 2026-06-15T20:46:57.713

Link: CVE-2026-54396

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-13T00:30:09Z

Weaknesses