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Published: Dec 21, 2022 CVE numbers: CVE-2022-23539, CVE-2022-23541, CVE-2022-23540

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Overview

Auth0 has released a new major version of the jsonwebtoken library to address four vulnerabilities. We recommend you review the following security advisories and upgrade to the new major version:
  • Unrestricted key type could lead to legacy keys usage: CVE-2022-23539
  • Insecure implementation of key retrieval function could lead to Forgeable Public/Private Tokens from RSA to HMAC: CVE-2022-23541
  • Insecure default algorithm in .verify() could lead to signature validation bypass: CVE-2022-23540

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Am I affected?

You could be affected if you are using jsonwebtoken in any version <= 8.5.1 depending on the configuration. Please consult the individual security advisories for more details.

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How to fix that?

If you are using jsonwebtoken, upgrade to version 9.0.0 or higher. You may need some additional configuration. Please consult the individual security advisories for more details.

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Will this update impact my users?

Updating to version 9.0.0 may impact your users depending on your configuration and application needs. Please consult the individual security advisories for more details.
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