diff --git a/src/core/mentions/index.ts b/src/core/mentions/index.ts
index d0d305d096..881c2cc292 100644
--- a/src/core/mentions/index.ts
+++ b/src/core/mentions/index.ts
@@ -267,11 +267,18 @@ async function getFileOrFolderContent(
 						const absoluteFilePath = path.resolve(absPath, entry.name)
 						fileContentPromises.push(
 							(async () => {
+								let isBinary = false
+								try {
+									isBinary = await isBinaryFile(absoluteFilePath)
+								} catch (error) {
+									// If isBinaryFile throws an error (e.g., RangeError), treat as binary
+									console.warn(`Error checking if file is binary for ${absoluteFilePath}:`, error)
+									isBinary = true
+								}
+								if (isBinary) {
+									return undefined
+								}
 								try {
-									const isBinary = await isBinaryFile(absoluteFilePath).catch(() => false)
-									if (isBinary) {
-										return undefined
-									}
 									const content = await extractTextFromFile(absoluteFilePath, maxReadFileLine)
 									return `<file_content path="${filePath.toPosix()}">\n${content}\n</file_content>`
 								} catch (error) {
diff --git a/src/core/tools/__tests__/readFileTool.spec.ts b/src/core/tools/__tests__/readFileTool.spec.ts
index 44be1d3b92..ab7e69eee7 100644
--- a/src/core/tools/__tests__/readFileTool.spec.ts
+++ b/src/core/tools/__tests__/readFileTool.spec.ts
@@ -518,5 +518,26 @@ describe("read_file tool XML output structure", () => {
 				`<files>\n<file><path>${testFilePath}</path><error>Access to ${testFilePath} is blocked by the .rooignore file settings. You must try to continue in the task without using this file, or ask the user to update the .rooignore file.</error></file>\n</files>`,
 			)
 		})
+
+		it("should handle RangeError from isBinaryFile gracefully", async () => {
+			// Setup - mock isBinaryFile to throw RangeError
+			mockedIsBinaryFile.mockRejectedValue(new RangeError("Invalid array length"))
+			mockedCountFileLines.mockResolvedValue(5)
+
+			// Execute - the main goal is to verify the error doesn't crash the application
+			const result = await executeReadFileTool(
+				{},
+				{
+					totalLines: 5,
+				},
+			)
+
+			// Verify that the file is processed (the error is handled gracefully)
+			expect(result).toContain(`<file><path>${testFilePath}</path>`)
+
+			// Verify that we get a valid XML response (not an error)
+			expect(result).toMatch(/<files>.*<\/files>/s)
+			expect(result).not.toContain("<error>")
+		})
 	})
 })
diff --git a/src/core/tools/readFileTool.ts b/src/core/tools/readFileTool.ts
index 6de8dd5642..b8d3f8989c 100644
--- a/src/core/tools/readFileTool.ts
+++ b/src/core/tools/readFileTool.ts
@@ -433,7 +433,20 @@ export async function readFileTool(
 
 			// Process approved files
 			try {
-				const [totalLines, isBinary] = await Promise.all([countFileLines(fullPath), isBinaryFile(fullPath)])
+				let totalLines: number
+				let isBinary: boolean
+
+				// First, count the file lines (this should not fail for valid files)
+				totalLines = await countFileLines(fullPath)
+
+				// Then check if it's binary, with error handling specific to isBinaryFile
+				try {
+					isBinary = await isBinaryFile(fullPath)
+				} catch (error) {
+					// If isBinaryFile throws an error (e.g., RangeError), treat the file as binary
+					console.warn(`Error checking if file is binary for ${relPath}:`, error)
+					isBinary = true
+				}
 
 				// Handle binary files (but allow specific file types that extractTextFromFile can handle)
 				if (isBinary) {
diff --git a/src/integrations/misc/__tests__/extract-text-large-files.spec.ts b/src/integrations/misc/__tests__/extract-text-large-files.spec.ts
index fc2f7f54b6..e164c070ab 100644
--- a/src/integrations/misc/__tests__/extract-text-large-files.spec.ts
+++ b/src/integrations/misc/__tests__/extract-text-large-files.spec.ts
@@ -25,6 +25,8 @@ describe("extractTextFromFile - Large File Handling", () => {
 		// Set default mock behavior
 		mockedFs.access.mockResolvedValue(undefined)
 		mockedIsBinaryFile.mockResolvedValue(false)
+		// Mock console.warn
+		vi.spyOn(console, "warn").mockImplementation(() => {})
 	})
 
 	it("should truncate files that exceed maxReadFileLine limit", async () => {
@@ -218,4 +220,20 @@ describe("extractTextFromFile - Large File Handling", () => {
 			"File not found: /test/nonexistent.ts",
 		)
 	})
+
+	it("should handle RangeError from isBinaryFile and treat file as binary", async () => {
+		// Setup - mock isBinaryFile to throw RangeError
+		mockedIsBinaryFile.mockRejectedValue(new RangeError("Invalid array length"))
+
+		// Execute and expect it to throw since file is treated as binary
+		await expect(extractTextFromFile("/test/problematic-file.bin", 100)).rejects.toThrow(
+			"Cannot read text for file type: .bin",
+		)
+
+		// Verify that the warning was logged
+		expect(console.warn).toHaveBeenCalledWith(
+			"Error checking if file is binary for /test/problematic-file.bin:",
+			expect.any(RangeError),
+		)
+	})
 })
diff --git a/src/integrations/misc/extract-text.ts b/src/integrations/misc/extract-text.ts
index 8231c609be..a2a9c722ee 100644
--- a/src/integrations/misc/extract-text.ts
+++ b/src/integrations/misc/extract-text.ts
@@ -86,7 +86,14 @@ export async function extractTextFromFile(filePath: string, maxReadFileLine?: nu
 	}
 
 	// Handle other files
-	const isBinary = await isBinaryFile(filePath).catch(() => false)
+	let isBinary = false
+	try {
+		isBinary = await isBinaryFile(filePath)
+	} catch (error) {
+		// If isBinaryFile throws an error (e.g., RangeError), treat as binary
+		console.warn(`Error checking if file is binary for ${filePath}:`, error)
+		isBinary = true
+	}
 
 	if (!isBinary) {
 		// Check if we need to apply line limit