CVE-2026-108863
Katanemo Plano through 0.4.37 Missing Authentication on Envoy Admin Interface
- State
- Published
- Severity
- 8.7 High
- Published
- Oct 11, 2026
- Updated
- Oct 13, 2026
- Reserved
- Oct 11, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-306 Missing Authentication for Critical Function
Affected Products
| Product | Versions |
|---|---|
PlanoKatanemo |
|
References
- https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/katanemo-plano-envoy-admin-config-secret-disclosurethird-party-advisory
- https://github.com/katanemo/plano/blob/0.4.37/config/envoy.template.yaml#L1-L3technical-description
- https://github.com/katanemo/plano/blob/0.4.37/cli/planoai/config_generator.py#L588-L656technical-description
- https://github.com/katanemo/planoproduct
- VulnCheck Advisory: Katanemo Plano through 0.4.37 Missing Authentication on Envoy Admin Interfacethird-party-advisory
- https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/cve-2026-108863-katanemo-plano-envoy-admin-config-secret-disclosureexploit
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