diff --git a/common/auth/src/swagger_ui.rs b/common/auth/src/swagger_ui.rs
index 895cf1a19..daf32807b 100644
--- a/common/auth/src/swagger_ui.rs
+++ b/common/auth/src/swagger_ui.rs
@@ -2,6 +2,7 @@ use crate::devmode::{self, SWAGGER_UI_CLIENT_ID};
 use actix_web::dev::HttpServiceFactory;
 use openid::{Client, Discovered, Provider, StandardClaims};
 use std::sync::Arc;
+use trustify_common::tls::ClientConfig;
 use url::Url;
 use utoipa::openapi::{
     extensions::Extensions,
@@ -17,9 +18,27 @@ use utoipa_swagger_ui::{oauth, Config, SwaggerUi};
 )]
 #[group(id = "swagger")]
 pub struct SwaggerUiOidcConfig {
+    /// Make the TLS client insecure, disabling all validation (DANGER!).
+    #[arg(
+        id = "swagger-ui-tls-insecure",
+        long,
+        env = "SWAGGER_UI_OIDC_TLS_INSECURE",
+        default_value_t = false
+    )]
+    pub tls_insecure: bool,
+
+    /// Additional certificates which will be added as trust anchors.
+    #[arg(
+        id = "swagger-ui-tls-ca-certificates",
+        long,
+        env = "SWAGGER_UI_OIDC_TLS_CA_CERTIFICATES"
+    )]
+    pub ca_certificates: Vec<String>,
+
     /// The issuer URL used by the Swagger UI, disabled if none.
     #[arg(long, env)]
     pub swagger_ui_oidc_issuer_url: Option<String>,
+
     /// The client ID use by the swagger UI frontend
     #[arg(long, env, default_value = "frontend")]
     pub swagger_ui_oidc_client_id: String,
@@ -28,6 +47,8 @@ pub struct SwaggerUiOidcConfig {
 impl SwaggerUiOidcConfig {
     pub fn devmode() -> Self {
         Self {
+            tls_insecure: false,
+            ca_certificates: vec![],
             swagger_ui_oidc_issuer_url: Some(devmode::issuer_url()),
             swagger_ui_oidc_client_id: SWAGGER_UI_CLIENT_ID.to_string(),
         }
@@ -43,13 +64,27 @@ pub struct SwaggerUiOidc {
 
 impl SwaggerUiOidc {
     pub async fn new(config: SwaggerUiOidcConfig) -> anyhow::Result<Option<Self>> {
-        let issuer_url = match config.swagger_ui_oidc_issuer_url {
+        let SwaggerUiOidcConfig {
+            tls_insecure,
+            ca_certificates,
+            swagger_ui_oidc_issuer_url,
+            swagger_ui_oidc_client_id,
+        } = config;
+
+        let client = ClientConfig {
+            tls_insecure,
+            ca_certificates,
+        }
+        .build_client()?;
+
+        let issuer_url = match swagger_ui_oidc_issuer_url {
             None => return Ok(None),
             Some(issuer_url) => issuer_url,
         };
 
-        let client: Client<Discovered, StandardClaims> = openid::Client::discover(
-            config.swagger_ui_oidc_client_id.clone(),
+        let client: Client<Discovered, StandardClaims> = Client::discover_with_client(
+            client,
+            swagger_ui_oidc_client_id.clone(),
             None,
             None,
             Url::parse(&issuer_url)?,