CVE-2025-46572
Passport-wsfed-saml2 allows SAML Authentication Bypass via Signature Wrapping
Description
### Overview This vulnerability allows an attacker to impersonate any user during SAML authentication by crafting a SAMLResponse. This can be done by using a valid SAML object that was signed by the configured IdP. ### Am I Affected? You are affected by this SAML Signature Wrapping vulnerability if you are using `passport-wsfed-saml2` version 4.6.3 or below, specifically under the following conditions: 1. The service provider is using `passport-wsfed-saml2`, 2. A valid SAML document signed by the Identity Provider can be obtained. ### Fix Upgrade to v4.6.4 or greater.
How to fix CVE-2025-46572
To remediate CVE-2025-46572, upgrade the affected package to a fixed version below.
- —upgrade to 4.6.4 or later
Is CVE-2025-46572 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 3.0.5, < 4.6.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |