Migration-planner: agent api ignores jwt source_id claim_CVE-2026-53471

{
    "lastseen": "",
    "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.",
    "published": "2026-06-10T13:55:41.253Z",
    "modified": "2026-06-10T13:55:41.253Z",
    "type": "cve",
    "title": "Migration-planner: agent api ignores jwt source_id claim",
    "source": "redhat",
    "references": "https://access.redhat.com/security/cve/CVE-2026-53471\nhttps://bugzilla.redhat.com/show_bug.cgi?id=2487070\nhttps://github.com/kubev2v/migration-planner/pull/1213",
    "id": "CVE-2026-53471",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "  0",
    "sourceHref": "",
    "cvss": {
        "score": 9.6,
        "severity": "CRITICAL",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "migration-planner",
    "version": "0",
    "vendor": "Red Hat",
    "ai_description": "A flaw in migration-planner allows authenticated attackers to manipulate data across different tenants due to insufficient validation of JSON Web Tokens (JWTs)",
    "ai_severity": "Critical",
    "ai_vendor": "Red Hat",
    "ai_product": "migration-planner",
    "ai_version": "0",
    "ai_score": 9.6
}