cvedb.io
CVE-2021-39171
MEDIUM · CVSS 5.3
EPSS exploitation probability: 0%
Published 2021-08-27T22:15:07.267 · Last modified 2026-06-17T04:03:14.560

Summary

Passport-SAML is a SAML 2.0 authentication provider for Passport, the Node.js authentication library. Prior to version 3.1.0, a malicious SAML payload can require transforms that consume significant system resources to process, thereby resulting in reduced or denied service. This would be an effective way to perform a denial-of-service attack. This has been resolved in version 3.1.0. The resolution is to limit the number of allowable transforms to 2.

Affected products

passport-saml_project — passport-saml

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.