CVE-2026-53471
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.7 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
- EPSS
- 0.29% probability · 21th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-639
- Affected
- kebev2v/migration assessment
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/CVE-2026-53471Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2487070Issue Tracking, Third Party Advisory
- https://github.com/kubev2v/migration-planner/pull/1213Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.