PT-2026-77277

Malcolm's nginx Lua role-based access control RBAC layer decides whether an authenticated user may reach a role-restricted path e.g. /htadmin, /auth, /admin login, /arkime/api/esadmin, NetBox, upload endpoints by pattern-matching the raw, percent-encoded request URI. Nginx itself, however, select...

CVE-2026-63177 Malcolm Vulnerable to Authorization Bypass via URI Normalization Differential in Nginx Lua RBAC

Malcolm is a network traffic analysis tool suite. Prior to version 26.07.0, role-based access control enforced in the Nginx OpenResty Lua layer evaluates the raw, unnormalized ngx.var.requesturi, while Nginx itself routes requests using the normalized path. An authenticated low-privilege user can...