---
id: CVE-2026-111998
title: Vanus 0.8.0 through 0.9.0 Default Admin Credentials via Gateway
summary: >-
  Vanus 0.8.0 through 0.9.0 contains a default credentials vulnerability that
  allows unauthenticated remote attackers to gain cluster-admin access by using
  the hardcoded admin token. Attackers can send the fixed Bearer token to the
  gateway…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-1392
vendor: vanus-labs
product: vanus
affected:
  - vanus >= 0.8.0 <= 0.9.0
published: '2026-10-18'
updated: '2026-10-18'
sourceUpdated: '2026-10-18T11:38:24.388Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111998'
references:
  - url: 'https://github.com/vanus-labs/vanus/issues/647'
  - url: >-
      https://github.com/vanus-labs/vanus/blob/v0.9.0/internal/controller/tenant/controller.go#L449-L500
  - url: >-
      https://github.com/vanus-labs/vanus/blob/v0.9.0/internal/primitive/constants.go#L37
  - url: >-
      https://www.vulncheck.com/advisories/vanus-0.8.0-through-0.9.0-default-admin-credentials-via-gateway
    label: >-
      VulnCheck Advisory: Vanus 0.8.0 through 0.9.0 Default Admin Credentials
      via Gateway
tags:
  - cve.org
ingestedAt: '2026-10-18T11:40:26.627Z'
---

## Overview

Vanus 0.8.0 through 0.9.0 contains a default credentials vulnerability that allows unauthenticated remote attackers to gain cluster-admin access by using the hardcoded admin token. Attackers can send the fixed Bearer token to the gateway gRPC proxy port to manage namespaces, eventbuses, users, tokens, and role bindings, and read or publish events.

## Affected

- `vanus >= 0.8.0 <= 0.9.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.