Unlimited transforms allowed for signed nodes

CAO 7.5CVE-2021-39171 · GHSA-5379-r78w-42h2 · Công bố 27/08/2021 · cập nhật 17/06/2026

Tóm tắt nhanh

CVE-2021-39171 là lỗ hổng mức CAO (CVSS 7.5) ảnh hưởng passport-saml (passport-saml project), passport-saml.
Xác suất bị khai thác trong 30 ngày tới (EPSS): 1.3%, cao hơn 70.9% các lỗ hổng khác.
Cách xử lý: cập nhật lên 3.1.0 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
passport-saml passport-saml_project	`< 3.1.0`	`3.1.0`
passport-saml npm	`< 3.1.0`	`3.1.0`

Mô tả

Impact

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.

Patches

This has been resolved in version 3.1.0. The resolution is to limit the number of allowable transforms to 2.

References

https://github.com/node-saml/passport-saml/pull/595

Mô tả của NVD

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.