gchq/CyberChef · error · OperationError

Could not extract EXIF data from image: ${err}

Error message

Could not extract EXIF data from image: ${err}

What it means

Thrown by the Extract EXIF operation when the exif-parser library raises any exception during parsing. The error wraps the underlying library message. EXIF data is metadata embedded in JPEG, TIFF, and some audio files. Parsing fails when the input is not a valid image with EXIF data or when the EXIF structure is malformed/corrupt.

Source

Thrown at src/core/operations/ExtractEXIF.mjs:57

     * @param {Object[]} args
     * @returns {string}
     */
    run(input, args) {
        try {
            const parser = ExifParser.create(input);
            const result = parser.parse();

            const lines = [];
            for (const tagName in result.tags) {
                const value = result.tags[tagName];
                lines.push(`${tagName}: ${value}`);
            }

            const numTags = lines.length;
            lines.unshift(`Found ${numTags} tags.\n`);
            return lines.join("\n");
        } catch (err) {
            throw new OperationError(`Could not extract EXIF data from image: ${err}`);
        }
    }

}

export default ExtractEXIF;

View on GitHub (pinned to 4290ea7539)

Solutions

1. Verify the input is a JPEG or TIFF file that actually contains EXIF metadata.
2. Use a different extraction operation if the image format is not EXIF-based (e.g., PNG).
3. Check the wrapped error message for the specific library failure (e.g., 'Invalid EXIF', 'Could not find JFIF').
4. Try re-saving or repairing the image if EXIF is suspected corrupt.

Example fix

// before: input = <PNG file ArrayBuffer> -> exif-parser throws

// after: input = <JPEG file with EXIF APP1 segment>

try {
  const result = chef.extractEXIF(input);
} catch (e) {
  if (e.message.startsWith('Could not extract EXIF')) {
    // Input may not be a JPEG/TIFF or has no EXIF; try alternative
    console.warn('No EXIF data found:', e.message);
  } else throw e;
}

When it happens

Trigger: run(input, args) where ExifParser.create(input).parse() throws — e.g., input is not a valid image, has no EXIF segment, or contains a corrupt EXIF APP1 marker. The catch block at line 56 re-throws as OperationError.

Common situations: Feeding a PNG (which uses eXIf chunks, not APP1), a GIF, a text file, a truncated/corrupted JPEG, or an image whose EXIF was stripped. Also occurs with HEIC/RAW formats not supported by exif-parser.

Related errors

• Invalid file type.
• Invalid file format.
• Invalid file type.
• Invalid file type.
• Please enter a valid image file.

AI-assisted analysis of gchq/CyberChef@4290ea7539 (2026-08-13). Data as JSON: /api/errors/5793e9bbd60c0361. Report an issue: GitHub.