---
title: "CVE-2026-111998: Vanus - Authentication Bypass"
description: "Vanus 0.8.0 through 0.9.0 contains a hardcoded credentials vulnerability caused by a fixed admin token in the gateway gRPC proxy port, letting unauthenticated remote attackers gain cluster-admin access."
url: https://panop.io/threat-heartbeat/CVE-2026-111998/
---

# CVE-2026-111998 Vanus - Authentication Bypass

Vanus 0.8.0 through 0.9.0 contains a hardcoded credentials vulnerability caused by a fixed admin token in the gateway gRPC proxy port, letting unauthenticated remote attackers gain cluster-admin access.

CVSS base score 9.8 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-111998)

## Details

Type

Hardcoded Credentials

Impact

Privilege Escalation, Information Disclosure, Data Tampering

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Published

18 October 2026

Updated

19 October 2026

Weakness

[CWE-1392](https://cwe.mitre.org/data/definitions/1392.html)

## Vendor fix

Update to a version later than 0.9.0 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-111998](https://nvd.nist.gov/vuln/detail/CVE-2026-111998)
- [https://github.com/vanus-labs/vanus/blob/v0.9.0/internal/controller/tenant/controller.go#L449-L500](https://github.com/vanus-labs/vanus/blob/v0.9.0/internal/controller/tenant/controller.go#L449-L500)
- [https://github.com/vanus-labs/vanus/blob/v0.9.0/internal/primitive/constants.go#L37](https://github.com/vanus-labs/vanus/blob/v0.9.0/internal/primitive/constants.go#L37)
- [https://github.com/vanus-labs/vanus/issues/647](https://github.com/vanus-labs/vanus/issues/647)
- [https://www.vulncheck.com/advisories/vanus-0.8.0-through-0.9.0-default-admin-credentials-via-gateway](https://www.vulncheck.com/advisories/vanus-0.8.0-through-0.9.0-default-admin-credentials-via-gateway)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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