---
id: CVE-2026-108863
title: >-
  Katanemo Plano through 0.4.37 contains a missing authentication vulnerability
  that allows unauthenticated network attackers to access the Envoy admin
  interface, which is bound to all host interfaces on port 9901
summary: >-
  Katanemo Plano through 0.4.37 contains a missing authentication vulnerability
  that allows unauthenticated network attackers to access the Envoy admin
  interface, which is bound to all host interfaces on port 9901. Attackers can
  request th…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-306
published: '2026-10-11'
updated: '2026-10-11'
sourceUpdated: '2026-10-11T14:17:06.360'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-108863'
references:
  - url: 'https://github.com/katanemo/plano'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/katanemo/plano/blob/0.4.37/cli/planoai/config_generator.py#L588-L656
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/katanemo/plano/blob/0.4.37/config/envoy.template.yaml#L1-L3
    label: disclosure@vulncheck.com
  - url: >-
      https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/katanemo-plano-envoy-admin-config-secret-disclosure
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/katanemo-plano-through-0.4.37-missing-authentication-on-envoy-admin-interface
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-12T14:50:34.053Z'
---

## Overview

Katanemo Plano through 0.4.37 contains a missing authentication vulnerability that allows unauthenticated network attackers to access the Envoy admin interface, which is bound to all host interfaces on port 9901. Attackers can request the /config_dump endpoint to read configured LLM provider API keys in plaintext from the WASM filter configuration.

## Remediation

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