CVE-2026-53471: Authorization Bypass Through User-Controlled Key
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.
AI Analysis
Technical Summary
The vulnerability in migration-planner involves improper validation of the source_id claim within JWTs by the UpdateSourceInventory and UpdateAgentStatus handlers in the agent-API middleware. This allows an authenticated attacker possessing a valid agent token to perform unauthorized actions across different tenants, effectively bypassing tenant isolation controls. The flaw can lead to data manipulation such as overwriting victim inventory, injecting malicious credential URLs, or corrupting migration assessments. The issue affects versions before 0.13.5. The vendor advisory from Red Hat does not currently specify a remediation or patch status.
Potential Impact
Successful exploitation results in a complete collapse of tenant isolation, enabling attackers to manipulate data belonging to other tenants. This can cause unauthorized overwriting of inventory data, insertion of malicious credential URLs, and corruption of migration assessments. The confidentiality and integrity of tenant data are severely impacted. Availability impact is not indicated.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://access.redhat.com/security/cve/CVE-2026-53471 for current remediation guidance. Until an official fix is available, restrict access to the affected API handlers to trusted agents only and monitor for unusual cross-tenant activity if possible.
CVE-2026-53471: Authorization Bypass Through User-Controlled Key
Description
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.
CVSS v3.1
Score 9.6critical
Affected software
pkg:github/migration-plannerRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in migration-planner involves improper validation of the source_id claim within JWTs by the UpdateSourceInventory and UpdateAgentStatus handlers in the agent-API middleware. This allows an authenticated attacker possessing a valid agent token to perform unauthorized actions across different tenants, effectively bypassing tenant isolation controls. The flaw can lead to data manipulation such as overwriting victim inventory, injecting malicious credential URLs, or corrupting migration assessments. The issue affects versions before 0.13.5. The vendor advisory from Red Hat does not currently specify a remediation or patch status.
Potential Impact
Successful exploitation results in a complete collapse of tenant isolation, enabling attackers to manipulate data belonging to other tenants. This can cause unauthorized overwriting of inventory data, insertion of malicious credential URLs, and corruption of migration assessments. The confidentiality and integrity of tenant data are severely impacted. Availability impact is not indicated.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://access.redhat.com/security/cve/CVE-2026-53471 for current remediation guidance. Until an official fix is available, restrict access to the affected API handlers to trusted agents only and monitor for unusual cross-tenant activity if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-06-09T17:03:29.627Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-53471","vendor":"Red Hat"}]
Threat ID: 6a29799fc9170919df2daed8
Added to database: 06/10/2026, 14:50:07 UTC
Last enriched: 06/17/2026, 16:08:48 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 89
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