CVE-2026-108863 Katanemo Plano through 0.4.37 Missing Authentication on Envoy Admin Interface
Unauthenticated attackers can access the Envoy admin interface to read plaintext LLM provider API keys from the configuration.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-108863?
CVE-2026-108863 is a high-severity missing authorization vulnerability in Katanemo Plano, published on 11 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-306
Which versions are affected by CVE-2026-108863?
How do I fix CVE-2026-108863?
No fix has been published for CVE-2026-108863 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-108863 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108863 exists.
Sources
Also known as GHSA-54m9-qc5w-93rc.