---
title: "CVE-2026-53470: Openshift Migration Advisor: Broken access control in migration-planner image-url endpoint exposes other users' OVA images and agent JWTs"
url: https://erroneo.us/security/cve/CVE-2026-53470/
description: "CVE-2026-53470 (github.com/kubev2v/migration-planner (Go)): A flaw was found in migration-planner. An authenticated attacker could exploit an improper…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-06-10
date_modified: 2026-08-14
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-53470"
kev: false
cvss: 9.6
epss: 0.00479
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-53470: Openshift Migration Advisor: Broken access control in migration-planner image-url endpoint exposes other users' OVA images and agent JWTs

**Signal:** Critical, preconditions apply. Severe if exploited, but exploitation needs conditions that may not apply to you. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.5% , percentile 40: FIRST’s model estimates a 0.5% chance of exploitation activity in the next 30 days, higher than 40% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Needs an account (low (any account)). Exposure depends on who can log in.
- Only applies if your dependency tree includes github.com/kubev2v/migration-planner (Go) < 0.13.5, fixed in 0.13.5 . Check your lockfile, including transitive dependencies.

## What it is

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.

## Affected packages

- Go `github.com/kubev2v/migration-planner` < 0.13.5 → fixed: 0.13.5

## Affected products (CVE record)

-  migration-planner: < 0.13.5

## Severity

- redhat CVSS 3.1: 9.6 `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N`
- GitHub CVSS 3.1: 9.6 `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.48% probability of exploitation activity in the next 30 days; percentile 40.

## Sources

- [GitHub Advisory GHSA-v5m8-5455-qw2x](https://github.com/advisories/GHSA-v5m8-5455-qw2x)
- [CVE.org record CVE-2026-53470](https://www.cve.org/CVERecord?id=CVE-2026-53470)
- [NVD entry CVE-2026-53470](https://nvd.nist.gov/vuln/detail/CVE-2026-53470)
- [access.redhat.com](https://access.redhat.com/security/cve/CVE-2026-53470)
- [RHBZ#2487069](https://bugzilla.redhat.com/show_bug.cgi?id=2487069)
- [github.com](https://github.com/kubev2v/migration-planner/pull/1218)
- [github.com](https://github.com/kubev2v/migration-planner/commit/ec47a336a620f4a995f29c1c53e4e4bd70a26e00)

---
Source page: https://erroneo.us/security/cve/CVE-2026-53470/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt