Policy Bypass Flaw Found in vLLM Semantic Router's Istio Integration

Colin McNamara disclosed a policy bypass vulnerability in vLLM Semantic Router's Istio integration, where two filters sharing the same name allow a single routing header to slip requests past safety filters.

2026-11-13 ~ 2026-11-13 · 2 related posts

• vLLM Semantic Router Istio policy bypass: one header skips the security filter — colinmcnamara · 2026-11-13

1 near-duplicate retellings: colinmcnamara