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Open-source package vulnerability · Go

CVE-2026-53471: Openshift Migration Advisor agent-API fails to validate JWT source_id claim, allowing cross-tenant data manipulation

criticalCVSS 3.1 9.6GHSA-2fqw-7c6r-2cq6

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 sourceid claim within these tokens against the requested source ID.

Published Jun 10, 2026 · Updated Aug 14, 2026

Affected packages

github.com/kubev2v/migration-planner

Ecosystem
Go
Affected
< 0.13.5
Fixed in
0.13.5
Check
go list -m github.com/kubev2v/migration-planner

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

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.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

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