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.
https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/katanemo-plano-envoy-admin-config-secret-disclosure
https://github.com/katanemo/plano/blob/0.4.37/config/envoy.template.yaml#L1-L3
https://github.com/katanemo/plano/blob/0.4.37/cli/planoai/config_generator.py#L588-L656
Published: 2026-10-11
Updated: 2026-10-11
Base Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N
Severity: High
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Severity: High
Base Score: 8.7
Vector: 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
Severity: High