CVE-2025-47949
samlify SAML Signature Wrapping attack
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
samlify SAML Signature Wrapping attack
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.
- Record
CVE-2025-47949- CVSS 4.0
- 9.9 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N - Weakness
- CWE-347
- Updated
- 2026-11-02
EUVDEUVD-2025-15809
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.
- Record
EUVD-2025-15809- CVSS 4.0
- 9.9 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-r683-v43c-6xqv
samlify SAML Signature Wrapping attack
A Signature Wrapping attack has been found in samlify <v2.10.0, 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.
- Record
GHSA-r683-v43c-6xqv- CVSS 4.0
- 9.9 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N - Weakness
- CWE-347
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2025-47949- CVSS 4.0
- 9.9 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-347
- Updated
- 2026-11-02
OSV
samlify SAML Signature Wrapping attack
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.
- Record
CVE-2025-47949- CVSS 4.0
- 9.9 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N - Weakness
- CWE-347
- Updated
- 2026-11-02
OSVGHSA-r683-v43c-6xqv
samlify SAML Signature Wrapping attack
A Signature Wrapping attack has been found in samlify <v2.10.0, 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.
- Record
GHSA-r683-v43c-6xqv- CVSS 4.0
- 9.9 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N - Weakness
- CWE-347
- Updated
- 2026-11-02
OSVROOT-APP-NPM-CVE-2025-47949 No score
CVE-2025-47949 in samlify - Patched by Root
Root has patched CVE-2025-47949 in the samlify package for Root:npm. Multiple fixed versions available.
- Record
ROOT-APP-NPM-CVE-2025-47949- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
samlifynpm |
before 2.10.0 | 2.10.0 |
samlifyRoot:npm |
before 2.10.0-aikido.2 | 2.10.0-aikido.22.10.0-aikido.1 |
@rootio/samlifyRoot:npm |
before 2.10.0-root.io.2 | 2.10.0-root.io.22.10.0-root.io.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-47949 is a critical vulnerability (CVSS 9.9) in Samlify Project Samlify, published May 19, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.47%, the 40th percentile. Fixed in samlify 2.10.0.
References
github.com/tngan/samlify/security/advisories/GHSA-r683-v43c-6xqv
nvd.nist.gov/vuln/detail/CVE-2025-47949