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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products
katanemo:plano
References 6
https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/katanemo-plano-envoy-admin-config-sec…
NVD
https://github.com/katanemo/plano/blob/0.4.37/config/envoy.template.yaml#L1-L3
NVD
https://github.com/katanemo/plano/blob/0.4.37/cli/planoai/config_generator.py#L…
NVD
https://github.com/katanemo/plano
NVD
https://www.vulncheck.com/advisories/katanemo-plano-through-0.4.37-missing-auth…
VulnCheck Advisory: Katanemo Plano through 0.4.37 Missing Authentication on Envoy Admin Interface
https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/cve-2026-108863-katanemo-plano-envoy-…
134c704f-9b21-4f2e-91b3-4a467353bcc0