Vulnerability library
Security checkJuly 17, 2026

ExifReader is vulnerable to denial of service via crafted ICC `mluc` tag

Understand the exposure, see the recommended fix, and check whether your own website has related weaknesses.

High severitynpmexifreader

Check your website

Find this and other vulnerabilities with a free scan.

Your scan runs on your computer. No account required.

Description

When parsing an image with an embedded ICC profile that contains a crafted multiLocalizedUnicodeType (mluc) tag, ExifReader can be made to allocate memory proportional to attacker-controlled fields in the tag rather than to the actual size of the input.

Recommendation

Update the exifreader package to the latest compatible version. Followings are version details:

  • Affected version(s): >= 2.10.0, < 4.39.0
  • Patched version(s): 4.39.0

References

Could your website be exposed too?

SmartScanner can check your website for ExifReader is vulnerable to denial of service via crafted ICC `mluc` tag and gives you actionable findings to investigate.

Start a free scan

Related Issues

See something that needs correcting? Let us knowUpdated July 17, 2026