Critical
samlify SAML Signature Wrapping attack
Type: advisorySources: OSV
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2025-47949
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 14:54 UTC · Revision 1
Source evidence
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.
osv:CVE-2025-47949
Complete source record
{
"id": "d03bc9b77daf7980c84c0fd103a86319b4674239b7acf4fca47b757340cab3bf",
"url": "https://osv.dev/vulnerability/CVE-2025-47949",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "samlify SAML Signature Wrapping attack",
"summary": "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.",
"evidence": "osv:CVE-2025-47949",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2025-47949",
"aliases": [
"CVE-2025-47949",
"GHSA-r683-v43c-6xqv"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "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"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/tngan/samlify",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "73cae30f836fa71ac80904eeb52bfdee81fe06ae"
},
{
"fixed": "115679acd89f0a37ea3ebd8fff7db54fca3e8af3"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:samlify_project:samlify:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "2.10.0"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "115679acd89f0a37ea3ebd8fff7db54fca3e8af3"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"v2.9.1",
"v2.8.11",
"v2.8.10",
"v2.8.9",
"v2.8.8",
"v2.8.7",
"v2.8.6",
"v2.8.5",
"v2.8.4",
"v2.8.3",
"v2.8.2",
"v2.8.1",
"v2.8.0",
"v2.8.0-rc1",
"v2.7.7",
"v2.7.6",
"v2.7.5",
"v2.7.4",
"v2.7.3",
"v2.7.2",
"v2.7.1",
"v2.7.0",
"v2.6.3",
"v2.6.2",
"v2.6.1",
"v2.6.0",
"v2.5.1",
"v2.5.0",
"v2.5.0-rc4",
"v2.5.0-rc3",
"v2.5.0-rc2",
"v2.5.0-rc1",
"v2.4.2",
"v2.4.1",
"v.2.4.0",
"v2.4.0-rc6",
"v2.4.0-rc5",
"v2.4.0-rc4",
"v2.4.0-rc2",
"v2.4.0-rc1",
"v2.3.8",
"v2.3.7",
"v2.3.6",
"v2.3.5",
"v2.3.4",
"v2.3.3",
"v2.3.0",
"v2.2.0",
"v2.1.1",
"v2.1.0",
"v2.0.4",
"v2.0.3",
"v2.0.2",
"v2.0.1",
"v2.0.0",
"v2.0.1-rc.3",
"v2.0.0-rc.3",
"v2.0.0-rc.2",
"v2.0.0-rc.1",
"v2.0.0-beta",
"v2.0.0-alpha",
"v1.2.5",
"v1.2.4",
"v1.2.3",
"v1.2.2",
"v1.2.1",
"v1.2",
"v1.1.5",
"v1.1.3",
"v1.1.0",
"v1.0.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-47949.json"
}
}
],
"modified": "2026-10-28T02:30:29.639149769Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/47xxx/CVE-2025-47949.json",
"https://github.com/tngan/samlify/security/advisories/GHSA-r683-v43c-6xqv",
"https://nvd.nist.gov/vuln/detail/CVE-2025-47949",
"https://github.com/tngan/samlify/commit/115679acd89f0a37ea3ebd8fff7db54fca3e8af3"
],
"provider_metadata": {
"cwe_ids": [
"CWE-347"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/47xxx/CVE-2025-47949.json"
}
},
"related_cves": [
{
"value": "CVE-2025-47949",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 496564,
"published_at": "2025-05-19T19:28:45.476+00:00"
}