{"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"}}]}}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.0.0,1.2.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "relyra", "source": "cna", "vendor": "szTheory"}, "product": "relyra", "vendor": "sztheory"}], "created": "2026-06-18T22:30:16.765180+00:00", "updated": "2026-06-20T22:55:42.311576+00:00", "vendors": ["sztheory", "sztheory$PRODUCT$relyra"]}