diff --git a/.changeset/bright-pans-rhyme.md b/.changeset/bright-pans-rhyme.md
new file mode 100644
index 0000000000..c5f72b9ac6
--- /dev/null
+++ b/.changeset/bright-pans-rhyme.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-techdocs': patch
+---
+
+Include cookies when making fetch requests for SVG from techdocs plugin
diff --git a/plugins/techdocs/src/reader/transformers/addBaseUrl.test.ts b/plugins/techdocs/src/reader/transformers/addBaseUrl.test.ts
index 84ac4be7ee..f04c9963f0 100644
--- a/plugins/techdocs/src/reader/transformers/addBaseUrl.test.ts
+++ b/plugins/techdocs/src/reader/transformers/addBaseUrl.test.ts
@@ -154,6 +154,9 @@ describe('addBaseUrl', () => {
     await waitFor(() => {
       const actualSrc = root.getElementById('x')?.getAttribute('src');
       expect(expectedSrc).toEqual(actualSrc);
+      expect(global.fetch).toHaveBeenCalledWith(`${API_ORIGIN_URL}/test.svg`, {
+        credentials: 'include',
+      });
     });
   });
 
diff --git a/plugins/techdocs/src/reader/transformers/addBaseUrl.ts b/plugins/techdocs/src/reader/transformers/addBaseUrl.ts
index 81021fbde8..f21cb8c47a 100644
--- a/plugins/techdocs/src/reader/transformers/addBaseUrl.ts
+++ b/plugins/techdocs/src/reader/transformers/addBaseUrl.ts
@@ -64,7 +64,7 @@ export const addBaseUrl = ({
           const apiOrigin = await techdocsStorageApi.getApiOrigin();
           if (isSvgNeedingInlining(attributeName, elemAttribute, apiOrigin)) {
             try {
-              const svg = await fetch(newValue);
+              const svg = await fetch(newValue, { credentials: 'include' });
               const svgContent = await svg.text();
               elem.setAttribute(
                 attributeName,