{
    "id": "CVE-2024-45409",
    "published": "2024-09-10 19:15:22",
    "last_modified": "2026-06-17 07:54:09",
    "cvss_score": "10.0",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N",
    "cwe": "CWE-347",
    "description": "The Ruby SAML library is for implementing the client side of a SAML authorization. Ruby-SAML in <= 12.2 and 1.13.0 <= 1.16.0 does not properly verify the signature of the SAML Response. An unauthenticated attacker with access to any signed saml document (by the IdP) can thus forge a SAML Response/Assertion with arbitrary contents. This would allow the attacker to log in as arbitrary user within the vulnerable system. This vulnerability is fixed in 1.17.0 and 1.12.3.",
    "epss_score": "0.10684",
    "epss_percentile": "0.95689",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-03 18:17:45",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 10.7% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "gitlab",
            "product": "gitlab"
        },
        {
            "vendor": "omniauth",
            "product": "omniauth_saml"
        },
        {
            "vendor": "onelogin",
            "product": "ruby-saml"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://github.com/SAML-Toolkits/ruby-saml/commit/1ec5392bc506fe43a02dbb66b68741051c5ffeae",
        "https://github.com/SAML-Toolkits/ruby-saml/commit/4865d030cae9705ee5cdb12415c654c634093ae7",
        "https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-jw9c-mfg7-9rx2",
        "https://github.com/omniauth/omniauth-saml/security/advisories/GHSA-cvp8-5r8g-fhvq",
        "https://lists.debian.org/debian-lts-announce/2024/11/msg00006.html",
        "https://news.ycombinator.com/item?id=41586031",
        "https://security.netapp.com/advisory/ntap-20240926-0008/",
        "https://ssoready.com/blog/engineering/ruby-saml-pwned-by-xml-signature-wrapping-attacks/"
    ]
}