diff --git a/src/core/xref.js b/src/core/xref.js
index e273eeeba..0f1e957ea 100644
--- a/src/core/xref.js
+++ b/src/core/xref.js
@@ -503,7 +503,7 @@ class XRef {
         // Find the next "obj" string, rather than "endobj", to ensure that
         // we won't skip over a new 'obj' operator in corrupt files where
         // 'endobj' operators are missing (fixes issue9105_reduced.pdf).
-        while (startPos < buffer.length) {
+        while (startPos < length) {
           const endPos = startPos + skipUntil(buffer, startPos, objBytes) + 4;
           contentLength = endPos - position;
 
@@ -545,7 +545,29 @@ class XRef {
         (token.length === 7 || /\s/.test(token[7]))
       ) {
         trailers.push(position);
-        position += skipUntil(buffer, position, startxrefBytes);
+
+        const contentLength = skipUntil(buffer, position, startxrefBytes);
+        // Attempt to handle (some) corrupt documents, where no 'startxref'
+        // operators are present (fixes issue15590.pdf).
+        if (position + contentLength >= length) {
+          const endPos = position + skipUntil(buffer, position, objBytes) + 4;
+
+          const checkPos = Math.max(endPos - CHECK_CONTENT_LENGTH, position);
+          const tokenStr = bytesToString(buffer.subarray(checkPos, endPos));
+
+          // Find the first "obj" occurrence after the 'trailer' operator.
+          const objToken = nestedObjRegExp.exec(tokenStr);
+
+          if (objToken && objToken[1]) {
+            warn(
+              'indexObjects: Found first "obj" after "trailer", ' +
+                'caused by missing "startxref" -- trying to recover.'
+            );
+            position = endPos - objToken[1].length;
+            continue;
+          }
+        }
+        position += contentLength;
       } else {
         position += token.length + 1;
       }
diff --git a/test/pdfs/.gitignore b/test/pdfs/.gitignore
index 87d4c0278..c0ef6527d 100644
--- a/test/pdfs/.gitignore
+++ b/test/pdfs/.gitignore
@@ -351,6 +351,7 @@
 !issue9534_reduced.pdf
 !attachment.pdf
 !basicapi.pdf
+!issue15590.pdf
 !issue15594_reduced.pdf
 !issue2884_reduced.pdf
 !mixedfonts.pdf
diff --git a/test/pdfs/issue15590.pdf b/test/pdfs/issue15590.pdf
new file mode 100644
index 000000000..7af8ce482
--- /dev/null
+++ b/test/pdfs/issue15590.pdf
@@ -0,0 +1,23 @@
+%PDF-1.7
+
+trailer
+<<
+/Root 1 0 R
+>>
+
+1 0 obj
+<<
+/Type /Catalog
+/Pages 2 0 R
+/OpenAction 2 0 R
+>>
+endobj
+
+2 0 obj
+<<
+/S /JavaScript
+/JS(func=function(){app.alert(1)};func();)
+>>
+endobj
+
+%%EOF
diff --git a/test/unit/api_spec.js b/test/unit/api_spec.js
index cea08e235..1cb6f10cb 100644
--- a/test/unit/api_spec.js
+++ b/test/unit/api_spec.js
@@ -738,6 +738,33 @@ describe("api", function () {
 
       await loadingTask.destroy();
     });
+
+    it("creates pdf doc from PDF file, with incomplete trailer", async function () {
+      const loadingTask = getDocument(buildGetDocumentParams("issue15590.pdf"));
+      expect(loadingTask instanceof PDFDocumentLoadingTask).toEqual(true);
+
+      const pdfDocument = await loadingTask.promise;
+      expect(pdfDocument.numPages).toEqual(1);
+
+      const jsActions = await pdfDocument.getJSActions();
+      expect(jsActions).toEqual({
+        OpenAction: ["func=function(){app.alert(1)};func();"],
+      });
+
+      try {
+        await pdfDocument.getPage(1);
+
+        // Shouldn't get here.
+        expect(false).toEqual(true);
+      } catch (reason) {
+        expect(reason instanceof UnknownErrorException).toEqual(true);
+        expect(reason.message).toEqual(
+          "Page dictionary kids object is not an array."
+        );
+      }
+
+      await loadingTask.destroy();
+    });
   });
 
   describe("PDFWorker", function () {