CVE-2026-53471 CRITICAL

CVE-2026-53471: Migration-planner: agent api ignores jwt source_id claim

Weakness CWE-639 · IDOR
Published June 10, 2026
Last update June 10, 2026

CVSS base score

9.6/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

What the vulnerability does

01Description

A flaw was found in migration-planner. The agent-API middleware processes JSON Web Tokens (JWTs) for authentication, but its UpdateSourceInventory and UpdateAgentStatus handlers fail to validate the source_id claim within these tokens against the requested source ID. This oversight allows an authenticated attacker with a valid agent token to manipulate data across different tenants, leading to a complete collapse of tenant isolation. This could result in unauthorized overwriting of victim inventory, planting of malicious credential URLs, or corruption of migration assessments.

Key dates

02Disclosure timeline

June 10, 2026 CVE published
June 10, 2026 Record updated