CVE-2022-39300 HIGH

CVE-2022-39300: Signature bypass via multiple root elements in node-SAML

Vendor Node-Saml
Product node-saml
Weakness CWE-347
Published October 13, 2022
Last update April 23, 2025

CVSS base score

7.7/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

What the vulnerability does

01Description

node SAML is a SAML 2.0 library based on the SAML implementation of passport-saml. A remote attacker may be able to bypass SAML authentication on a website using passport-saml. A successful attack requires that the attacker is in possession of an arbitrary IDP signed XML element. Depending on the IDP used, fully unauthenticated attacks (e.g without access to a valid user) might also be feasible if generation of a signed message can be triggered. Users should upgrade to node-saml version 4.0.0-beta5 or newer. Disabling SAML authentication may be done as a workaround.

Key dates

02Disclosure timeline

October 13, 2022 CVE published
April 23, 2025 Record updated