{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-49454",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-05-30T02:43:33.107Z",
        "datePublished": "2026-06-18T20:52:22.605Z",
        "dateUpdated": "2026-06-22T15:51:42.595Z"
    },
    "containers": {
        "cna": {
            "title": "Relyra SAML SignatureValue not cryptographically verified -> authentication bypass",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-287",
                            "lang": "en",
                            "description": "CWE-287: Improper Authentication",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-347",
                            "lang": "en",
                            "description": "CWE-347: Improper Verification of Cryptographic Signature",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 9.1,
                        "baseSeverity": "CRITICAL",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/szTheory/relyra/security/advisories/GHSA-jv46-xfwm-36j7",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/szTheory/relyra/security/advisories/GHSA-jv46-xfwm-36j7"
                },
                {
                    "name": "https://github.com/szTheory/relyra/commit/2e456897af3158c175bb490ce7fc51d6241c8922",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/szTheory/relyra/commit/2e456897af3158c175bb490ce7fc51d6241c8922"
                },
                {
                    "name": "https://github.com/szTheory/relyra/commit/8910200",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/szTheory/relyra/commit/8910200"
                }
            ],
            "affected": [
                {
                    "vendor": "szTheory",
                    "product": "relyra",
                    "versions": [
                        {
                            "version": ">= 1.0.0, < 1.2.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-06-18T20:52:22.605Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Relyra is a strict-by-default SAML 2.0 Service Provider library for Elixir and Phoenix. Versions 1.0.0 and 1.1.0 accept forged SAML signatures because SignatureValue was not cryptographically verified before the library returned a successful authentication result. The XMLDSig trust boundary was incomplete as :public_key.verify over the exclusive-C14N canonicalized SignedInfo was not performed against the configured IdP certificate's public key, DigestValue was not recomputed over the canonicalized referenced element, and canonicalize/2 remained an unused passthrough in the signature-verification path. The result was a structure-only acceptance path where document shape and trust-source rejection could succeed without proving the signature bytes. A forged SignatureValue carrying an attacker-controlled NameID could be accepted as {:ok}. This issue has been fixed in version 1.2.0."
                }
            ],
            "source": {
                "advisory": "GHSA-jv46-xfwm-36j7",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-06-22T15:50:42.585285Z",
                                "id": "CVE-2026-49454",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-06-22T15:51:42.595Z"
                }
            }
        ]
    }
}