CVE-2026-53470: Openshift Migration Advisor Broken Access Control Vulnerability

CRITICAL
Advisory Identifier: GHSA-v5m8-5455-qw2x
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CVSS 9.6
CWE-639
Published
Advisory Summary

CVE-2026-53470 is a CRITICAL (CVSS 9.6) broken access control vulnerability (CWE-639: Authorization Bypass Through User-Controlled Key) affecting Openshift Migration Advisor libraries in the Go ecosystem. The issue involves broken access control in migration-planner image-url endpoint exposes other users' ova images and agent jwts. Remediation is available by upgrading affected packages to version 0.13.5.

CVE-2026-53470 at a Glance

CVE Identifier CVE-2026-53470
GHSA Identifier GHSA-v5m8-5455-qw2x
Severity CRITICAL
CVSS v3.1 Base Score 9.6
CWE Classification CWE-639: Authorization Bypass Through User-Controlled Key
Affected Product Openshift Migration Advisor
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 9.6

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Changed (S:C)
Confidentiality High (C:H)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2026-53470

To remediate this vulnerability, upgrade all affected Openshift Migration Advisor dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/kubev2v/migration-planner fixed: 0.13.5 
Upgrade github.com/kubev2v/migration-planner to 0.13.5
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/kubev2v/migration-planner

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-53470, inspect your project dependencies for Openshift Migration Advisor:

inspect dependencies for github.com/kubev2v/migration-planner

Analyze the terminal output to locate any version of Openshift Migration Advisor in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.13.5), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-639: Authorization Bypass Through User-Controlled Key, where the system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. In Openshift Migration Advisor, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2026-53470 Affected Openshift Migration Advisor Versions

1 component(s)
Fixed Versions:
0.13.5
Product / Package Ecosystem Affected Versions Fixed Version
github.com/kubev2v/migration-planner
golang/github.com/kubev2v/migration-planner
Go
< 0.13.5
0.13.5

References

NVD — CVE-2026-53470 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-53470
Openshift Migration Advisor Source Repository REPOSITORY
https://github.com/kubev2v/migration-planner/pull/1218
Security Fix Commit FIX COMMIT
https://github.com/kubev2v/migration-planner/commit/ec47a336a620f4a995f29c1c53e4e4bd70a26e00
Openshift Migration Advisor Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2026-53470
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2487069
Openshift Migration Advisor Source Repository REPOSITORY
https://github.com/kubev2v/migration-planner

Frequently Asked Questions

What is CVE-2026-53470?
CVE-2026-53470 is a security vulnerability in Openshift Migration Advisor involving Broken access control in migration-planner image-url endpoint exposes other users' OVA images and agent JWTs under CWE-639: Authorization Bypass Through User-Controlled Key.
Which Openshift Migration Advisor versions are affected?
Affected versions include releases prior to 0.13.5 across affected packages: github.com/kubev2v/migration-planner.
What version fixes CVE-2026-53470?
Upgrading to 0.13.5 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/kubev2v/migration-planner affected?
Yes, github.com/kubev2v/migration-planner is affected in releases prior to 0.13.5. Upgrade your dependency to 0.13.5 or later.
What is the CVSS score of CVE-2026-53470?
CVE-2026-53470 has a CVSS v3.1 base score of 9.6 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N.
What CWE is associated with CVE-2026-53470?
CVE-2026-53470 is classified under CWE-639: Authorization Bypass Through User-Controlled Key (The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.).
How can I check Go dependencies for CVE-2026-53470?
Run the dependency tree command: 'inspect dependencies for github.com/kubev2v/migration-planner'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-v5m8-5455-qw2x",
  "modified" : "2026-08-14T15:37:35Z",
  "published" : "2026-06-10T15:31:33Z",
  "aliases" : [ "CVE-2026-53470" ],
  "summary" : "Openshift Migration Advisor: Broken access control in migration-planner image-url endpoint exposes other users' OVA images and agent JWTs",
  "details" : "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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/kubev2v/migration-planner"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.13.5"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-53470"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kubev2v/migration-planner/pull/1218"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kubev2v/migration-planner/commit/ec47a336a620f4a995f29c1c53e4e4bd70a26e00"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/security/cve/CVE-2026-53470"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2487069"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/kubev2v/migration-planner"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-639" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-08-14T15:37:35Z",
    "nvd_published_at" : "2026-06-10T15:16:41Z"
  }
}