CVE-2022-31093: NextAuth improper handling of callbackUrl parameter

CVE-2022-31093 · Severity: low · CVSS 3.1 · Published 2022-06-21

NextAuth is an authentication library for Next.js applications. An attacker can send a malformed callbackUrl parameter to trigger an unhandled error that causes the authentication API route to hang and fail, preventing users from logging in.

Technologies: next-auth (npm). Vendors: npm.

Quick answers

Is CVE-2022-31093 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2022-31093 being exploited in the wild.
How severe is CVE-2022-31093?
Low severity, with a CVSS score of 3.1, published 21 June 2022.
Which products and versions are affected?
next-auth (npm) SEMVER:introduced=0,fixed=3.29.5.
Is there a fix for CVE-2022-31093?
Yes. next-auth (npm): upgrade to 3.29.5 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2022-31093 attacked?
It is attacked over the network.
Am I affected by CVE-2022-31093?
Check whether you run next-auth (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • next-auth (npm): upgrade to 3.29.5 or later
    npm install next-auth@3.29.5

Technical details

This is an improper parameter handling vulnerability (CWE-233/CWE-754) in NextAuth's callback URL validation. When an attacker supplies a malformed URL string as the callbackUrl query parameter, the code attempts to instantiate a URL object without validating the input first, causing a thrown exception. The unhandled error causes the API route handler to timeout and authentication to fail. The vulnerability affects NextAuth v3 (before 3.29.5) and v4 (before 4.5.0). Attack requires only a network connection with no authentication or user interaction. Patches are available in v3.29.5 and v4.5.0.

Affected products

  • NextAuth next-auth <3.29.5, 4.0.0-4.4.x

Identifiers

  • CVE-2022-31093
  • GHSA-g5fm-jp9v-2432

Timeline

  • 2022-06-21: disclosed
  • 2022-06-21: patched: v3.29.5 and v4.5.0 released

References

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