diff --git a/extensions/ollama/src/embedding-provider.test.ts b/extensions/ollama/src/embedding-provider.test.ts
index d406ae61a651..4d12b444eb3d 100644
--- a/extensions/ollama/src/embedding-provider.test.ts
+++ b/extensions/ollama/src/embedding-provider.test.ts
@@ -259,25 +259,159 @@ describe("ollama embedding provider", () => {
     ).rejects.toThrow(/memory\.search\.remote\.apiKey: unresolved SecretRef/i);
   });
 
-  it("falls back to env key when provider apiKey is an unresolved SecretRef", async () => {
-    vi.stubEnv("OLLAMA_API_KEY", "ollama-env");
+  it.each(["ollama", "ollama-private"])(
+    "resolves selected %s provider credential and header SecretRefs before ambient cloud auth",
+    async (providerId) => {
+      vi.stubEnv("OLLAMA_API_KEY", "synthetic-cloud-key");
+      vi.stubEnv("OLLAMA_SELECTED_HOST_KEY", "synthetic-selected-host-key");
+      vi.stubEnv("OLLAMA_PROXY_KEY", "synthetic-proxy-key");
 
-    const { fetchMock } = await embedTestQuery({
-      config: createProviderConfig({
-        baseUrl: "http://127.0.0.1:11434/v1",
-        apiKey: { source: "env", provider: "default", id: "OLLAMA_API_KEY" },
-        models: [],
-      }),
-    });
+      const { fetchMock } = await embedTestQuery({
+        config: createProviderConfig(
+          {
+            baseUrl: "https://selected-private-host.invalid/v1",
+            apiKey: {
+              source: "env",
+              provider: "default",
+              id: "OLLAMA_SELECTED_HOST_KEY",
+            },
+            headers: {
+              "X-Proxy-Auth": {
+                source: "env",
+                provider: "default",
+                id: "OLLAMA_PROXY_KEY",
+              },
+            },
+            models: [],
+          },
+          providerId,
+        ),
+        provider: providerId,
+      });
 
-    expectEmbeddingFetch(fetchMock, "http://127.0.0.1:11434/api/embed", {
-      input: "search_query: hello",
-      headers: {
-        "Content-Type": "application/json",
-        Authorization: "Bearer ollama-env",
-      },
-    });
-  });
+      expectEmbeddingFetch(fetchMock, "https://selected-private-host.invalid/api/embed", {
+        input: "search_query: hello",
+        headers: {
+          "Content-Type": "application/json",
+          "X-Proxy-Auth": "synthetic-proxy-key",
+          Authorization: "Bearer synthetic-selected-host-key",
+        },
+      });
+    },
+  );
+
+  it.each([
+    { providerId: "ollama", surface: "apiKey", source: "env" },
+    { providerId: "ollama-private", surface: "apiKey", source: "env" },
+    { providerId: "ollama", surface: "headers", source: "env" },
+    { providerId: "ollama-private", surface: "headers", source: "env" },
+    { providerId: "ollama", surface: "apiKey", source: "file" },
+    { providerId: "ollama", surface: "headers", source: "file" },
+    { providerId: "ollama-private", surface: "apiKey", source: "exec" },
+    { providerId: "ollama-private", surface: "headers", source: "exec" },
+  ])(
+    "fails closed before any request for unresolved $providerId $surface $source SecretRefs",
+    async ({ providerId, surface, source }) => {
+      vi.stubEnv("OLLAMA_API_KEY", "synthetic-cloud-key");
+      vi.stubEnv("OLLAMA_SELECTED_HOST_KEY", "synthetic-selected-host-key");
+      vi.stubEnv("OLLAMA_MISSING_SELECTED_SECRET", "");
+      const fetchMock = mockEmbeddingFetch([1, 0]);
+      const unavailableSecret = {
+        source,
+        provider: "default" as const,
+        id:
+          source === "file"
+            ? "/synthetic/missing-ollama-secret"
+            : source === "exec"
+              ? "synthetic-missing-ollama-secret"
+              : "OLLAMA_MISSING_SELECTED_SECRET",
+      };
+      const selectedHostKey = {
+        source: "env" as const,
+        provider: "default" as const,
+        id: "OLLAMA_SELECTED_HOST_KEY",
+      };
+
+      await expect(
+        createEmbeddingProvider({
+          config: createProviderConfig(
+            {
+              baseUrl: "https://selected-private-host.invalid/v1",
+              apiKey: surface === "apiKey" ? unavailableSecret : selectedHostKey,
+              ...(surface === "headers"
+                ? {
+                    headers: {
+                      "X-Proxy-Auth": unavailableSecret,
+                    },
+                  }
+                : {}),
+              models: [],
+            },
+            providerId,
+          ),
+          provider: providerId,
+        }),
+      ).rejects.toThrow(
+        `models.providers.${providerId}.${
+          surface === "headers" ? "headers.X-Proxy-Auth" : "apiKey"
+        }`,
+      );
+      expect(fetchMock).not.toHaveBeenCalled();
+      expect(fetchConfiguredLocalOriginWithSsrFGuardMock).not.toHaveBeenCalled();
+    },
+  );
+
+  it.each(["OLLAMA_API_KEY", "ollama-local"])(
+    "keeps explicit selected-host SecretRef value %s opaque",
+    async (resolvedSecret) => {
+      vi.stubEnv("OLLAMA_API_KEY", "synthetic-cloud-key");
+      vi.stubEnv("OLLAMA_SELECTED_HOST_KEY", resolvedSecret);
+
+      const { fetchMock } = await embedTestQuery({
+        config: createProviderConfig({
+          baseUrl: "https://selected-private-host.invalid/v1",
+          apiKey: {
+            source: "env",
+            provider: "default",
+            id: "OLLAMA_SELECTED_HOST_KEY",
+          },
+          models: [],
+        }),
+      });
+
+      expectEmbeddingFetch(fetchMock, "https://selected-private-host.invalid/api/embed", {
+        input: "search_query: hello",
+        headers: {
+          "Content-Type": "application/json",
+          Authorization: `Bearer ${resolvedSecret}`,
+        },
+      });
+    },
+  );
+
+  it.each(["$OLLAMA_SELECTED_HOST_KEY", "${OLLAMA_SELECTED_HOST_KEY}"])(
+    "resolves selected-host env shorthand SecretRef %s before ambient cloud auth",
+    async (apiKey) => {
+      vi.stubEnv("OLLAMA_API_KEY", "synthetic-cloud-key");
+      vi.stubEnv("OLLAMA_SELECTED_HOST_KEY", "synthetic-selected-host-key");
+
+      const { fetchMock } = await embedTestQuery({
+        config: createProviderConfig({
+          baseUrl: "https://selected-private-host.invalid/v1",
+          apiKey,
+          models: [],
+        }),
+      });
+
+      expectEmbeddingFetch(fetchMock, "https://selected-private-host.invalid/api/embed", {
+        input: "search_query: hello",
+        headers: {
+          "Content-Type": "application/json",
+          Authorization: "Bearer synthetic-selected-host-key",
+        },
+      });
+    },
+  );
 
   it("sends batch embeddings in one Ollama request", async () => {
     const { fetchMock, inputs } = mockBatchEmbeddingFetch(3);
@@ -504,6 +638,95 @@ describe("ollama embedding provider", () => {
     });
   });
 
+  it.each(["Authorization", "authorization", "AUTHORIZATION"])(
+    "keeps explicit remote %s header ahead of ambient Ollama Cloud credentials",
+    async (headerName) => {
+      vi.stubEnv("OLLAMA_API_KEY", "synthetic-cloud-tenant-b");
+
+      const { fetchMock } = await embedTestQuery({
+        remote: {
+          baseUrl: "https://ollama.com",
+          headers: { [headerName]: "Bearer synthetic-explicit-tenant-a" },
+        },
+      });
+
+      expectEmbeddingFetch(fetchMock, "https://ollama.com/api/embed", {
+        input: "search_query: hello",
+        headers: {
+          "Content-Type": "application/json",
+          [headerName]: "Bearer synthetic-explicit-tenant-a",
+        },
+      });
+    },
+  );
+
+  it("uses explicit header auth without resolving an inactive selected-host apiKey SecretRef", async () => {
+    vi.stubEnv("OLLAMA_API_KEY", "synthetic-cloud-key");
+    vi.stubEnv("OLLAMA_MISSING_SELECTED_SECRET", "");
+
+    const { fetchMock } = await embedTestQuery({
+      config: createProviderConfig({
+        baseUrl: "https://selected-private-host.invalid/v1",
+        apiKey: {
+          source: "env",
+          provider: "default",
+          id: "OLLAMA_MISSING_SELECTED_SECRET",
+        },
+        models: [],
+      }),
+      remote: {
+        baseUrl: "https://selected-private-host.invalid",
+        headers: { authorization: "Bearer synthetic-explicit-tenant-a" },
+      },
+    });
+
+    expectEmbeddingFetch(fetchMock, "https://selected-private-host.invalid/api/embed", {
+      input: "search_query: hello",
+      headers: {
+        "Content-Type": "application/json",
+        authorization: "Bearer synthetic-explicit-tenant-a",
+      },
+    });
+  });
+
+  it("skips a selected-host SecretRef header overridden case-insensitively by remote auth", async () => {
+    vi.stubEnv("OLLAMA_API_KEY", "synthetic-cloud-key");
+    vi.stubEnv("OLLAMA_SELECTED_HOST_KEY", "synthetic-selected-host-key");
+    vi.stubEnv("OLLAMA_MISSING_SELECTED_SECRET", "");
+
+    const { fetchMock } = await embedTestQuery({
+      config: createProviderConfig({
+        baseUrl: "https://selected-private-host.invalid/v1",
+        apiKey: {
+          source: "env",
+          provider: "default",
+          id: "OLLAMA_SELECTED_HOST_KEY",
+        },
+        headers: {
+          "X-Proxy-Auth": {
+            source: "env",
+            provider: "default",
+            id: "OLLAMA_MISSING_SELECTED_SECRET",
+          },
+        },
+        models: [],
+      }),
+      remote: {
+        baseUrl: "https://selected-private-host.invalid",
+        headers: { "x-proxy-auth": "synthetic-remote-header" },
+      },
+    });
+
+    expectEmbeddingFetch(fetchMock, "https://selected-private-host.invalid/api/embed", {
+      input: "search_query: hello",
+      headers: {
+        "Content-Type": "application/json",
+        "x-proxy-auth": "synthetic-remote-header",
+        Authorization: "Bearer synthetic-selected-host-key",
+      },
+    });
+  });
+
   it("does not attach provider apiKey to a different remote embedding host", async () => {
     const { fetchMock } = await embedTestQuery({
       config: createProviderConfig({
@@ -519,6 +742,74 @@ describe("ollama embedding provider", () => {
     expect(headers?.Authorization).toBeUndefined();
   });
 
+  it("does not forward selected-host SecretRefs to a different remote embedding host", async () => {
+    vi.stubEnv("OLLAMA_API_KEY", "synthetic-cloud-key");
+    vi.stubEnv("OLLAMA_SELECTED_HOST_KEY", "synthetic-selected-host-key");
+    vi.stubEnv("OLLAMA_SELECTED_PROXY_KEY", "synthetic-selected-proxy-key");
+
+    const { fetchMock } = await embedTestQuery({
+      config: createProviderConfig({
+        baseUrl: "https://selected-private-host.invalid/v1",
+        apiKey: {
+          source: "env",
+          provider: "default",
+          id: "OLLAMA_SELECTED_HOST_KEY",
+        },
+        headers: {
+          "X-Selected-Host-Auth": {
+            source: "env",
+            provider: "default",
+            id: "OLLAMA_SELECTED_PROXY_KEY",
+          },
+        },
+        models: [],
+      }),
+      remote: {
+        baseUrl: "https://remote-embedding-host.invalid",
+        apiKey: "synthetic-remote-key",
+        headers: { "X-Remote-Auth": "synthetic-remote-header" },
+      },
+    });
+
+    expectEmbeddingFetch(fetchMock, "https://remote-embedding-host.invalid/api/embed", {
+      input: "search_query: hello",
+      headers: {
+        "Content-Type": "application/json",
+        "X-Remote-Auth": "synthetic-remote-header",
+        Authorization: "Bearer synthetic-remote-key",
+      },
+    });
+  });
+
+  it("ignores an inactive selected-host SecretRef when remote credentials own another host", async () => {
+    vi.stubEnv("OLLAMA_API_KEY", "synthetic-cloud-key");
+    vi.stubEnv("OLLAMA_MISSING_SELECTED_SECRET", "");
+
+    const { fetchMock } = await embedTestQuery({
+      config: createProviderConfig({
+        baseUrl: "https://selected-private-host.invalid/v1",
+        apiKey: {
+          source: "env",
+          provider: "default",
+          id: "OLLAMA_MISSING_SELECTED_SECRET",
+        },
+        models: [],
+      }),
+      remote: {
+        baseUrl: "https://remote-embedding-host.invalid",
+        apiKey: "synthetic-remote-key",
+      },
+    });
+
+    expectEmbeddingFetch(fetchMock, "https://remote-embedding-host.invalid/api/embed", {
+      input: "search_query: hello",
+      headers: {
+        "Content-Type": "application/json",
+        Authorization: "Bearer synthetic-remote-key",
+      },
+    });
+  });
+
   it("attaches remote apiKey to a remote embedding host", async () => {
     const { fetchMock } = await embedTestQuery({
       remote: { baseUrl: "https://memory.example.com", apiKey: "remote-host-key" },
@@ -624,6 +915,45 @@ describe("ollama embedding provider", () => {
     expect(otherTenant.runtime?.cacheKeyData).not.toEqual(result.runtime?.cacheKeyData);
   });
 
+  it("keys memory cache identity by resolved tenant SecretRefs without exposing their values", async () => {
+    vi.stubEnv("OLLAMA_SELECTED_HOST_KEY", "synthetic-selected-host-key");
+    vi.stubEnv("OLLAMA_SELECTED_TENANT", "synthetic-tenant-a");
+    const options = {
+      config: createProviderConfig(
+        {
+          api: "ollama",
+          baseUrl: "https://selected-private-host.invalid",
+          apiKey: {
+            source: "env",
+            provider: "default",
+            id: "OLLAMA_SELECTED_HOST_KEY",
+          },
+          headers: {
+            "X-Ollama-Tenant": {
+              source: "env",
+              provider: "default",
+              id: "OLLAMA_SELECTED_TENANT",
+            },
+          },
+          models: [],
+        },
+        "ollama-private",
+      ),
+      provider: "ollama-private",
+      model: "qwen3-embedding:4b",
+    };
+
+    const firstTenant = await createMemoryEmbeddingProvider(options);
+    vi.stubEnv("OLLAMA_SELECTED_TENANT", "synthetic-tenant-b");
+    const secondTenant = await createMemoryEmbeddingProvider(options);
+
+    expect(firstTenant.runtime?.cacheKeyData).not.toEqual(secondTenant.runtime?.cacheKeyData);
+    expect(JSON.stringify(firstTenant.runtime?.cacheKeyData)).not.toContain("synthetic-tenant-a");
+    expect(JSON.stringify(firstTenant.runtime?.cacheKeyData)).not.toContain(
+      "synthetic-selected-host-key",
+    );
+  });
+
   it("preserves configured provider aliases in the memory adapter", async () => {
     const result = await createMemoryEmbeddingProvider({
       config: createProviderConfig(
diff --git a/extensions/ollama/src/embedding-provider.ts b/extensions/ollama/src/embedding-provider.ts
index 3b09c284187a..095fe28c90b8 100644
--- a/extensions/ollama/src/embedding-provider.ts
+++ b/extensions/ollama/src/embedding-provider.ts
@@ -12,9 +12,11 @@ import {
 } from "openclaw/plugin-sdk/provider-http";
 import { normalizeProviderId } from "openclaw/plugin-sdk/provider-model-shared";
 import {
+  coerceSecretRef,
   hasConfiguredSecretInput,
   normalizeResolvedSecretInputString,
-} from "openclaw/plugin-sdk/secret-input";
+  resolveConfiguredSecretInputString,
+} from "openclaw/plugin-sdk/secret-input-runtime";
 import {
   formatErrorMessage,
   ssrfPolicyFromHttpBaseUrlAllowedOrigin,
@@ -202,9 +204,12 @@ type OllamaEmbeddingResolvedKeys = {
 function resolveSourcedOllamaEmbeddingKey(params: {
   configString: string | undefined;
   declared: boolean;
+  resolvedSecretRef?: boolean;
 }): OllamaEmbeddingSourceResolution {
   if (params.configString !== undefined) {
-    if (!isNonSecretApiKeyMarker(params.configString)) {
+    // Resolved SecretRefs are opaque credentials, even when their values happen
+    // to match an ambient env marker or the synthetic local-auth placeholder.
+    if (params.resolvedSecretRef || !isNonSecretApiKeyMarker(params.configString)) {
       return { apiKey: params.configString };
     }
     if (!isKnownEnvApiKeyMarker(params.configString)) {
@@ -213,17 +218,35 @@ function resolveSourcedOllamaEmbeddingKey(params: {
     const envKey = resolveEnvApiKey("ollama")?.apiKey;
     return envKey && !isNonSecretApiKeyMarker(envKey) ? { apiKey: envKey } : "opt-out";
   }
-  if (params.declared) {
-    const envKey = resolveEnvApiKey("ollama")?.apiKey;
-    return envKey && !isNonSecretApiKeyMarker(envKey) ? { apiKey: envKey } : "opt-out";
-  }
-  return "unset";
+  return params.declared ? "opt-out" : "unset";
 }
 
-function resolveOllamaEmbeddingResolvedKeys(
+async function resolveConfiguredOllamaEmbeddingSecret(params: {
+  config: OpenClawConfig;
+  value: unknown;
+  path: string;
+}): Promise<string | undefined> {
+  if (!coerceSecretRef(params.value, params.config.secrets?.defaults)) {
+    return normalizeOptionalSecretInput(params.value);
+  }
+  const resolved = await resolveConfiguredSecretInputString({
+    config: params.config,
+    env: process.env,
+    value: params.value,
+    path: params.path,
+    unresolvedReasonStyle: "detailed",
+  });
+  if (resolved.unresolvedRefReason) {
+    throw new Error(resolved.unresolvedRefReason);
+  }
+  return normalizeOptionalSecretInput(resolved.value);
+}
+
+async function resolveOllamaEmbeddingResolvedKeys(
   options: OllamaEmbeddingOptions,
   providerConfig: ReturnType<typeof resolveConfiguredProvider>,
-): OllamaEmbeddingResolvedKeys {
+  providerOwnsHost: boolean,
+): Promise<OllamaEmbeddingResolvedKeys> {
   const remoteValue = options.remote?.apiKey;
   const remote = resolveSourcedOllamaEmbeddingKey({
     configString: resolveMemorySecretInputString({
@@ -233,10 +256,18 @@ function resolveOllamaEmbeddingResolvedKeys(
     declared: hasConfiguredSecretInput(remoteValue),
   });
   const providerValue = providerConfig?.config.apiKey;
-  const provider = resolveSourcedOllamaEmbeddingKey({
-    configString: normalizeOptionalSecretInput(providerValue),
-    declared: hasConfiguredSecretInput(providerValue),
-  });
+  let provider: OllamaEmbeddingSourceResolution = "unset";
+  if (remote === "unset" && providerOwnsHost && providerConfig) {
+    provider = resolveSourcedOllamaEmbeddingKey({
+      configString: await resolveConfiguredOllamaEmbeddingSecret({
+        config: options.config,
+        value: providerValue,
+        path: `models.providers.${providerConfig.providerId}.apiKey`,
+      }),
+      declared: hasConfiguredSecretInput(providerValue),
+      resolvedSecretRef: Boolean(coerceSecretRef(providerValue, options.config.secrets?.defaults)),
+    });
+  }
   const envKey = resolveEnvApiKey("ollama")?.apiKey;
   const env = envKey && !isNonSecretApiKeyMarker(envKey) ? envKey : undefined;
   return { remote, provider, env };
@@ -285,17 +316,12 @@ function isOllamaCloudBaseUrl(baseUrl: string): boolean {
 function selectOllamaEmbeddingApiKey(params: {
   resolved: OllamaEmbeddingResolvedKeys;
   baseUrl: string;
-  baseUrlOrigin: OllamaEmbeddingBaseUrlOrigin;
-  providerOwnedHost: string;
+  providerOwnsHost: boolean;
 }): string | undefined {
   if (params.resolved.remote !== "unset") {
     return typeof params.resolved.remote === "object" ? params.resolved.remote.apiKey : undefined;
   }
-  const reachesProviderHost =
-    params.baseUrlOrigin === "provider-config" ||
-    params.baseUrlOrigin === "default" ||
-    areOllamaHostsEquivalent(params.baseUrl, params.providerOwnedHost);
-  if (params.resolved.provider !== "unset" && reachesProviderHost) {
+  if (params.resolved.provider !== "unset" && params.providerOwnsHost) {
     return typeof params.resolved.provider === "object"
       ? params.resolved.provider.apiKey
       : undefined;
@@ -306,30 +332,60 @@ function selectOllamaEmbeddingApiKey(params: {
   return undefined;
 }
 
-function resolveOllamaEmbeddingClient(
+async function resolveOllamaEmbeddingClient(
   options: OllamaEmbeddingOptions,
-): OllamaEmbeddingClientConfig {
+): Promise<OllamaEmbeddingClientConfig> {
   const providerConfig = resolveConfiguredProvider(options);
   const { baseUrl, origin: baseUrlOrigin } = resolveOllamaEmbeddingBaseUrl({
     remoteBaseUrl: options.remote?.baseUrl,
     providerConfig,
   });
   const model = normalizeEmbeddingModel(options.model, options.provider);
-  const headerOverrides = Object.assign(
-    {},
-    providerConfig?.config.headers,
-    options.remote?.headers,
+  const providerOwnedHost = resolveOllamaApiBase(readProviderBaseUrl(providerConfig?.config));
+  // Provider keys and headers belong to this origin only; a remote override
+  // must neither resolve nor inherit another host's configured credentials.
+  const providerOwnsHost =
+    baseUrlOrigin !== "remote-config" || areOllamaHostsEquivalent(baseUrl, providerOwnedHost);
+  const remoteHeaderNames = new Set(
+    Object.keys(options.remote?.headers ?? {}).map((headerName) => headerName.toLowerCase()),
   );
+  const headerOverrides: Record<string, string> = {};
+  if (providerOwnsHost && providerConfig?.config.headers) {
+    for (const [headerName, headerValue] of Object.entries(providerConfig.config.headers)) {
+      if (remoteHeaderNames.has(headerName.toLowerCase())) {
+        continue;
+      }
+      const resolvedValue = await resolveConfiguredOllamaEmbeddingSecret({
+        config: options.config,
+        value: headerValue,
+        path: `models.providers.${providerConfig.providerId}.headers.${headerName}`,
+      });
+      if (resolvedValue) {
+        headerOverrides[headerName] = resolvedValue;
+      }
+    }
+  }
+  Object.assign(headerOverrides, options.remote?.headers);
   const headers: Record<string, string> = {
     "Content-Type": "application/json",
     ...headerOverrides,
   };
-  const apiKey = selectOllamaEmbeddingApiKey({
-    resolved: resolveOllamaEmbeddingResolvedKeys(options, providerConfig),
-    baseUrl,
-    baseUrlOrigin,
-    providerOwnedHost: resolveOllamaApiBase(readProviderBaseUrl(providerConfig?.config)),
-  });
+  // Explicit HTTP auth owns its request; resolving a competing bearer can leak
+  // another tenant's key or fail on a SecretRef that is already inactive.
+  const hasAuthorizationHeader = Object.entries(headers).some(
+    ([name, value]) => name.toLowerCase() === "authorization" && value.trim().length > 0,
+  );
+  const apiKey = hasAuthorizationHeader
+    ? undefined
+    : selectOllamaEmbeddingApiKey({
+        resolved: await resolveOllamaEmbeddingResolvedKeys(
+          options,
+          providerConfig,
+          providerOwnsHost,
+        ),
+        baseUrl,
+        providerOwnsHost,
+      });
   if (apiKey) {
     headers.Authorization = `Bearer ${apiKey}`;
   }
@@ -356,7 +412,7 @@ function resolveOllamaEmbeddingClient(
 export async function createOllamaEmbeddingProvider(
   options: OllamaEmbeddingOptions,
 ): Promise<{ provider: OllamaEmbeddingProvider; client: OllamaEmbeddingClient }> {
-  const client = resolveOllamaEmbeddingClient(options);
+  const client = await resolveOllamaEmbeddingClient(options);
   const embedUrl = `${client.baseUrl.replace(/\/$/, "")}/api/embed`;
 
   const embedMany = async (input: string | string[], signal?: AbortSignal): Promise<number[][]> => {