CVE-2026-54533: Vantage6 Vantage6 Node Has An Improper Vulnerability

MODERATE
Advisory Identifier: GHSA-x9f6-9rvm-mmrg
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CWE-284
Published
Advisory Summary

CVE-2026-54533 is a MODERATE vantage6 node has an improper vulnerability (CWE-284: Improper Access Control) affecting Vantage6 libraries in the PyPI ecosystem. The issue involves vantage6 node has an improper access control issue. Remediation is available by upgrading affected packages to version 5.0.0.

CVE-2026-54533 at a Glance

CVE Identifier CVE-2026-54533
GHSA Identifier GHSA-x9f6-9rvm-mmrg
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-284: Improper Access Control
Affected Product Vantage6
Package Ecosystem PyPI
Published Date
Last Updated

How to Fix CVE-2026-54533

To remediate this vulnerability, upgrade all affected Vantage6 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

vantage6 fixed: 5.0.0 
pip install vantage6>=5.0.0
Verify Direct and Transitive Dependencies

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

pip show vantage6

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-54533, inspect your installed packages using pip:

pip show vantage6

Analyze the terminal output to locate any version of Vantage6 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 5.0.0), your application is affected.

Note: The pip show vantage6 command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-284: Improper Access Control, where the product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. In Vantage6, 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

### Impact Malicious algorithms can potentially access other algorithms input and output files. ### Patches Todo ### Workarounds Verify and restrict the algorithm containers that are allowed to run on your node. See [here](https://docs.vantage6.ai/usage/running-the-node/security) on how to do this. ### References https://docs.vantage6.ai/usage/running-the-node/security ### For more information If you have any questions or comments about this advisory: * Email us at [vantage6@iknl.nl](mailto:vantage6@iknl.nl)

CVE-2026-54533 Affected Vantage6 Versions

1 component(s)
Fixed Versions:
5.0.0
Product / Package Ecosystem Affected Versions Fixed Version
vantage6
pypi/vantage6
PyPI
< 5.0.0
5.0.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/vantage6/vantage6/security/advisories/GHSA-x9f6-9rvm-mmrg
NVD — CVE-2026-54533 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-54533
Vantage6 Source Repository REPOSITORY
https://github.com/vantage6/vantage6/issues/1932
Vantage6 Security Information SECURITY
https://docs.vantage6.ai/usage/running-the-node/security
Vantage6 Source Repository REPOSITORY
https://github.com/vantage6/vantage6
Vantage6 Source Repository REPOSITORY
https://github.com/vantage6/vantage6/blob/main/docs/release_notes.rst#500

Frequently Asked Questions

What is CVE-2026-54533?
CVE-2026-54533 is a security vulnerability in Vantage6 involving vantage6 node has an Improper Access Control issue under CWE-284: Improper Access Control.
Which Vantage6 versions are affected?
Affected versions include releases prior to 5.0.0 across affected packages: vantage6.
What version fixes CVE-2026-54533?
Upgrading to 5.0.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is vantage6 affected?
Yes, vantage6 is affected in releases prior to 5.0.0. Upgrade your dependency to 5.0.0 or later.
What CWE is associated with CVE-2026-54533?
CVE-2026-54533 is classified under CWE-284: Improper Access Control (The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.).
How can I check PyPI dependencies for CVE-2026-54533?
Run the dependency tree command: 'pip show vantage6'. 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-x9f6-9rvm-mmrg",
  "modified" : "2026-07-09T21:06:57Z",
  "published" : "2026-06-05T16:45:45Z",
  "aliases" : [ "CVE-2026-54533" ],
  "summary" : "vantage6 node has an Improper Access Control issue",
  "details" : "### Impact\nMalicious algorithms can potentially access other algorithms input and output files.\n\n### Patches\nTodo\n\n### Workarounds\nVerify and restrict the algorithm containers that are allowed to run on your node. See [here](https://docs.vantage6.ai/usage/running-the-node/security) on how to do this.\n\n### References\nhttps://docs.vantage6.ai/usage/running-the-node/security\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Email us at [vantage6@iknl.nl](mailto:vantage6@iknl.nl)",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "vantage6"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "5.0.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/vantage6/vantage6/security/advisories/GHSA-x9f6-9rvm-mmrg"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-54533"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/vantage6/vantage6/issues/1932"
  }, {
    "type" : "WEB",
    "url" : "https://docs.vantage6.ai/usage/running-the-node/security"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/vantage6/vantage6"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/vantage6/vantage6/blob/main/docs/release_notes.rst#500"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-284" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-06-05T16:45:45Z",
    "nvd_published_at" : "2026-06-17T23:17:05Z"
  }
}