---
id: CVE-2026-53471
aliases:
  - GHSA-2fqw-7c6r-2cq6
title: >-
  Openshift Migration Advisor agent-API fails to validate JWT source_id claim,
  allowing cross-tenant data manipulation
summary: >-
  Openshift Migration Advisor agent-API fails to validate JWT source_id claim,
  allowing cross-tenant data manipulation
severity: critical
cvss: 9.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N'
vendor: kubev2v
product: github.com/kubev2v/migration-planner
ecosystem: go
affected:
  - github.com/kubev2v/migration-planner < 0.13.5
patched:
  - github.com/kubev2v/migration-planner 0.13.5
published: '2026-06-10'
updated: '2026-08-14'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-2fqw-7c6r-2cq6'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-53471'
  - url: 'https://github.com/kubev2v/migration-planner/pull/1213'
  - url: >-
      https://github.com/kubev2v/migration-planner/commit/fd21a239216f5eeec635d16c72be9c033bd5d1aa
  - url: 'https://access.redhat.com/security/cve/CVE-2026-53471'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2487070'
  - url: 'https://github.com/kubev2v/migration-planner'
tags:
  - osv
  - go
epss: 0.00287
epssPercentile: 0.21454
ingestedAt: '2026-08-14T19:18:45.876Z'
---

## Overview

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.

## Affected packages

- `github.com/kubev2v/migration-planner < 0.13.5`

## Remediation

Upgrade to a patched release:

- `github.com/kubev2v/migration-planner 0.13.5`