CVE-2026-53471: A flaw was found in migration-planner
CVE-2026-53471 is a critical-severity flaw (CVSS 9.6) affecting migration assessment. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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 r
Why this priority
- Critical severity
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.6 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.3% (top 79%) |
| CISA exploited list | No |
| Weakness | CWE-639 |
| Published | 2026-06-10 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-53471?
migration assessment: upgrade to 0.13.5. Exact commands for each OS are on this page.
Is CVE-2026-53471 being exploited?
CVE-2026-53471 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-53471 affect?
CVE-2026-53471 affects migration assessment. Severity is critical (CVSS 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 again
How urgent is CVE-2026-53471?
Priority 39/100. Critical severity
Related CVEs
- CVE-2026-53470 CRITICAL 9.6 UPGRADE A flaw was found in migration-planner
- CVE-2026-53469 CRITICAL 9.1 UPGRADE A flaw was found in migration-planner
- CVE-2026-53474 CRITICAL 9.6 UPGRADE A flaw was found in migration-planner