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CVE-2026-53471

9.6
Critical
EPSS 0.29%Patch availableJun 11, 2026

JWT auth bypass in agent APIs enables cross-tenant data tampering.

common questions

Is CVE-2026-53471 being exploited?

Not confirmed. CVE-2026-53471 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.29% probability of exploitation in the next 30 days.

How severe is CVE-2026-53471?

CVE-2026-53471 is rated Critical with a CVSS score of 9.6. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2026-53471?

Yes. A fix has been recorded for CVE-2026-53471. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.

What does CVE-2026-53471 affect?

CVE-2026-53471 affects Migration Planner API middleware, UpdateSourceInventory handler, UpdateAgentStatus handler, Tenant data store / inventory. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2026-53471?

Validate source_id and enforce tenant isolation; patch when available.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary
technical analysis
affected
Migration Planner API middlewareUpdateSourceInventory handlerUpdateAgentStatus handlerTenant data store / inventory
impact

Cross-tenant data manipulation via source_id check; attacker with valid token can overwrite inventory and inject malicious URLs.

action required

Immediate action required

how to fix
Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.
references
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