CVE-2025-47949

samlify SAML Signature Wrapping attack

Description

samlify is a Node.js library for SAML single sign-on. A Signature Wrapping attack has been found in samlify prior to version 2.10.0, allowing an attacker to forge a SAML Response to authenticate as any user. An attacker would need a signed XML document by the identity provider. Version 2.10.0 fixes the issue.

Category

9.9
CVSS
Severity: Critical
CVSS 4.0 •
EPSS 0.03%
Affected: tngan samlify
Published at:
Updated at:

References

Link Tags
https://github.com/tngan/samlify/security/advisories/GHSA-r683-v43c-6xqv
https://github.com/tngan/samlify/commit/115679acd89f0a37ea3ebd8fff7db54fca3e8af3

Frequently Asked Questions

What is the severity of CVE-2025-47949?
CVE-2025-47949 has been scored as a critical severity vulnerability.
How to fix CVE-2025-47949?
To fix CVE-2025-47949, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-47949 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-47949 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-47949?
CVE-2025-47949 affects tngan samlify.
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