CVE-2026-53471

critical · 9.6

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.

9.6

CVSS

0.3%

EPSS (exploit prob.)

21st

EPSS percentile

2026-06-10

Published

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

Weaknesses

CWE-639

Affected products

Vendor	Product	Affected versions
kebev2v	migration_assessment	< 0.13.5

Check a specific version with /api/v1/cve/match.

References

https://access.redhat.com/security/cve/CVE-2026-53471
https://bugzilla.redhat.com/show_bug.cgi?id=2487070
https://github.com/kubev2v/migration-planner/pull/1213

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-53471