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Critical

xml-crypto Vulnerable to XML Signature Verification Bypass via Multiple SignedInfo References

Type: advisorySources: OSV

xml-crypto is an XML digital signature and encryption library for Node.js. An attacker may be able to exploit a vulnerability in versions prior to 6.0.1, 3.2.1, and 2.1.6 to bypass authentication or authorization mechanisms in systems that rely on xml-crypto for verifying signed XML documents. The vulnerability allows an attacker to modify a valid signed XML message in a way that still passes signature verification checks. For example, it could be used to alter critical identity or access control attributes, enabling an attacker with a valid account to escalate privileges or impersonate another user. Users of versions 6.0.0 and prior should upgrade to version 6.0.1 to receive a fix. Those who are still using v2.x or v3.x should upgrade to patched versions 2.1.6 or 3.2.1, respectively.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2025-29774
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 17:54 UTC · Revision 1

Source evidence

xml-crypto Vulnerable to XML Signature Verification Bypass via Multiple SignedInfo References

core-osv · Original source

Published 14 Mar 2025, 17:05 UTC

xml-crypto is an XML digital signature and encryption library for Node.js. An attacker may be able to exploit a vulnerability in versions prior to 6.0.1, 3.2.1, and 2.1.6 to bypass authentication or authorization mechanisms in systems that rely on xml-crypto for verifying signed XML documents. The vulnerability allows an attacker to modify a valid signed XML message in a way that still passes signature verification checks. For example, it could be used to alter critical identity or access control attributes, enabling an attacker with a valid account to escalate privileges or impersonate another user. Users of versions 6.0.0 and prior should upgrade to version 6.0.1 to receive a fix. Those who are still using v2.x or v3.x should upgrade to patched versions 2.1.6 or 3.2.1, respectively.

osv:CVE-2025-29774
Complete source record
{
  "id": "dfd2560174a88d1b7fa35c0dcade092423ec75b87e7115f07217d39ce65afe6e",
  "url": "https://osv.dev/vulnerability/CVE-2025-29774",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "xml-crypto Vulnerable to XML Signature Verification Bypass via Multiple SignedInfo References",
    "summary": "xml-crypto is an XML digital signature and encryption library for Node.js. An attacker may be able to exploit a vulnerability in versions prior to 6.0.1, 3.2.1, and 2.1.6 to bypass authentication or authorization mechanisms in systems that rely on xml-crypto for verifying signed XML documents. The vulnerability allows an attacker to modify a valid signed XML message in a way that still passes signature verification checks. For example, it could be used to alter critical identity or access control attributes, enabling an attacker with a valid account to escalate privileges or impersonate another user. Users of versions 6.0.0 and prior should upgrade to version 6.0.1 to receive a fix. Those who are still using v2.x or v3.x should upgrade to patched versions 2.1.6 or 3.2.1, respectively.",
    "evidence": "osv:CVE-2025-29774",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2025-29774",
      "aliases": [
        "CVE-2025-29774",
        "GHSA-9p8x-f768-wp2g"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/node-saml/xml-crypto",
              "type": "GIT",
              "events": [
                {
                  "introduced": "07110392122a09ad8e783fa40c6580dec8d0e3db"
                },
                {
                  "fixed": "d80e5b77ade2f72225a2f324d5b54d20f4f4e396"
                },
                {
                  "introduced": "f338e7a99e19afda1946c86078e8a72313f15282"
                },
                {
                  "fixed": "92bbddf6b986ab1bfeda6841339161dd599aa31a"
                },
                {
                  "introduced": "0"
                },
                {
                  "fixed": "5d260884f48e6bc3050a7d14be13c79a5e9acdec"
                },
                {
                  "fixed": "28f92218ecbb8dcbd238afa4efbbd50302aa9aed"
                },
                {
                  "fixed": "886dc63a8b4bb5ae1db9f41c7854b171eb83aa98"
                },
                {
                  "fixed": "8ac6118ee7978b46aa56b82cbcaa5fca58c93a07"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "4.0.0"
                      },
                      {
                        "fixed": "6.0.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "introduced": "3.0.0"
                      },
                      {
                        "fixed": "3.2.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.1.6"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "28f92218ecbb8dcbd238afa4efbbd50302aa9aed"
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                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
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                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "8ac6118ee7978b46aa56b82cbcaa5fca58c93a07"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "5d260884f48e6bc3050a7d14be13c79a5e9acdec"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.1.6"
                  },
                  {
                    "range": [
                      {
                        "fixed": "92bbddf6b986ab1bfeda6841339161dd599aa31a"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v3.2.1"
                  },
                  {
                    "range": [
                      {
                        "fixed": "d80e5b77ade2f72225a2f324d5b54d20f4f4e396"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v6.0.1"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v6.0.0",
            "v3.2.0",
            "v2.1.5",
            "v5.1.1",
            "v5.1.0",
            "v5.0.0",
            "v4.1.0",
            "v4.0.1",
            "v4.0.0",
            "v3.1.0",
            "v3.0.1",
            "v2.1.4",
            "v3.0.0",
            "v2.1.3",
            "v1.5.3",
            "v2.1.2",
            "v2.1.1",
            "v2.1.0",
            "v2.0.0",
            "v1.5.2",
            "v1.5.1",
            "v1.5.0",
            "v1.4.1",
            "v1.4.0",
            "v1.3.0",
            "v1.2.0",
            "v1.1.4",
            "v1.1.3",
            "v1.1.2",
            "v1.1.1",
            "v1.1.0",
            "v1.0.2",
            "v1.0.1",
            "v1.0.0",
            "v0.9.0",
            "0.9.0",
            "v0.8.5",
            "v0.8.4",
            "v0.8.3",
            "v0.8.2",
            "v0.8.1",
            "v0.8.0",
            "V1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-29774.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:31.187021408Z",
      "provider": "osv",
      "references": [
        "https://github.com/node-saml/xml-crypto/releases/tag/v2.1.6",
        "https://github.com/node-saml/xml-crypto/releases/tag/v3.2.1",
        "https://github.com/node-saml/xml-crypto/releases/tag/v6.0.1",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/29xxx/CVE-2025-29774.json",
        "https://github.com/node-saml/xml-crypto/security/advisories/GHSA-9p8x-f768-wp2g",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-29774",
        "https://github.com/node-saml/xml-crypto/commit/28f92218ecbb8dcbd238afa4efbbd50302aa9aed",
        "https://github.com/node-saml/xml-crypto/commit/886dc63a8b4bb5ae1db9f41c7854b171eb83aa98",
        "https://github.com/node-saml/xml-crypto/commit/8ac6118ee7978b46aa56b82cbcaa5fca58c93a07",
        "https://workos.com/blog/samlstorm"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-347"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/29xxx/CVE-2025-29774.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-29774",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 498053,
  "published_at": "2025-03-14T17:05:53.943+00:00"
}