Vulnerability library
Security checkOctober 15, 2025

Expo SDK has an OAuth vulnerability

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

High severitynpmexpo

Check your website

Find this and other vulnerabilities with a free scan.

Your scan runs on your computer. No account required.

Description

A vulnerability in the expo.io framework allows an attacker to take over accounts and steal credentials on an application/website that configured the “Expo AuthSession Redirect Proxy” for social sign-in. This can be achieved once a victim clicks a malicious link.

Recommendation

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

  • Affected version(s): < 48.0.0
  • Patched version(s): 48.0.0

References

Could your website be exposed too?

SmartScanner can check your website for Expo SDK has an OAuth vulnerability and gives you actionable findings to investigate.

Start a free scan

Related Issues

See something that needs correcting? Let us knowUpdated October 15, 2025