{"api_version":"1","generated_at":"2026-11-10T11:48:13+00:00","cve":"CVE-2026-123798","urls":{"html":"https://cve.report/CVE-2026-123798","api":"https://cve.report/api/cve/CVE-2026-123798.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-123798","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-123798"},"summary":{"title":"SuperTokens Core: SAML XML Signature Wrapping authentication bypass — any IdP user can authenticate as any other user","description":"SuperTokens Core is an open source authentication server. From 11.3.0 until 11.3.7, 11.4.7, and 12.0.10, SAML.verifySamlResponseSignature calls OpenSAML SignatureValidator.validate without first applying SAMLSignatureProfileValidator. The Core can therefore accept a cryptographically valid signature that references a different XML element from the Response or Assertion whose NameID and attributes are used for authentication. An ordinary user of the configured identity provider can move a genuinely signed element elsewhere in the document while supplying an attacker-authored identity-bearing element, causing XML Signature Wrapping authentication as another IdP user. Both response-level and assertion-level signing paths are affected, and SP-initiated login remains reachable without enabling allowIDPInitiatedLogin. This issue is fixed in versions 11.3.7, 11.4.7, and 12.0.10.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-11-09 19:16:46","updated_at":"2026-11-09 19:16:46"},"problem_types":["CWE-287","CWE-347","CWE-287 CWE-287: Improper Authentication","CWE-347 CWE-347: Improper Verification of Cryptographic Signature"],"metrics":[{"version":"3.1","source":"security-advisories@github.com","type":"Secondary","score":"8.1","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","baseScore":8.1,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"8.1","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"}}],"references":[{"url":"https://github.com/supertokens/supertokens-core/security/advisories/GHSA-gvx2-mwmj-wwvj","name":"https://github.com/supertokens/supertokens-core/security/advisories/GHSA-gvx2-mwmj-wwvj","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/supertokens/supertokens-core/commit/9cba541ae2ed87b878d11b257bc9b8b78341f50a","name":"https://github.com/supertokens/supertokens-core/commit/9cba541ae2ed87b878d11b257bc9b8b78341f50a","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/supertokens/supertokens-core/commit/d0773f2a6497411aeda5d4f03d3d135a2a3ae79c","name":"https://github.com/supertokens/supertokens-core/commit/d0773f2a6497411aeda5d4f03d3d135a2a3ae79c","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/supertokens/supertokens-core/commit/8d06b0cfb5409c5bf505051ddfcb94d66367caae","name":"https://github.com/supertokens/supertokens-core/commit/8d06b0cfb5409c5bf505051ddfcb94d66367caae","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/supertokens/supertokens-core/releases/tag/v11.3.7","name":"https://github.com/supertokens/supertokens-core/releases/tag/v11.3.7","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/supertokens/supertokens-core/releases/tag/v11.4.7","name":"https://github.com/supertokens/supertokens-core/releases/tag/v11.4.7","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/supertokens/supertokens-core/releases/tag/v12.0.10","name":"https://github.com/supertokens/supertokens-core/releases/tag/v12.0.10","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-123798","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123798","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"supertokens","product":"supertokens-core","version":"affected >= 12.0.6, < 12.0.10","platforms":[]},{"source":"CNA","vendor":"supertokens","product":"supertokens-core","version":"affected >= 11.4.0, < 11.4.7","platforms":[]},{"source":"CNA","vendor":"supertokens","product":"supertokens-core","version":"affected >= 11.3.0, < 11.3.7","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"product":"supertokens-core","vendor":"supertokens","versions":[{"status":"affected","version":">= 12.0.6, < 12.0.10"},{"status":"affected","version":">= 11.4.0, < 11.4.7"},{"status":"affected","version":">= 11.3.0, < 11.3.7"}]}],"descriptions":[{"lang":"en","value":"SuperTokens Core is an open source authentication server. From 11.3.0 until 11.3.7, 11.4.7, and 12.0.10, SAML.verifySamlResponseSignature calls OpenSAML SignatureValidator.validate without first applying SAMLSignatureProfileValidator. The Core can therefore accept a cryptographically valid signature that references a different XML element from the Response or Assertion whose NameID and attributes are used for authentication. An ordinary user of the configured identity provider can move a genuinely signed element elsewhere in the document while supplying an attacker-authored identity-bearing element, causing XML Signature Wrapping authentication as another IdP user. Both response-level and assertion-level signing paths are affected, and SP-initiated login remains reachable without enabling allowIDPInitiatedLogin. This issue is fixed in versions 11.3.7, 11.4.7, and 12.0.10."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","description":"CWE-287: Improper Authentication","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-347","description":"CWE-347: Improper Verification of Cryptographic Signature","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-11-09T18:04:20.419Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"name":"https://github.com/supertokens/supertokens-core/security/advisories/GHSA-gvx2-mwmj-wwvj","tags":["x_refsource_CONFIRM"],"url":"https://github.com/supertokens/supertokens-core/security/advisories/GHSA-gvx2-mwmj-wwvj"},{"name":"https://github.com/supertokens/supertokens-core/commit/8d06b0cfb5409c5bf505051ddfcb94d66367caae","tags":["x_refsource_MISC"],"url":"https://github.com/supertokens/supertokens-core/commit/8d06b0cfb5409c5bf505051ddfcb94d66367caae"},{"name":"https://github.com/supertokens/supertokens-core/commit/9cba541ae2ed87b878d11b257bc9b8b78341f50a","tags":["x_refsource_MISC"],"url":"https://github.com/supertokens/supertokens-core/commit/9cba541ae2ed87b878d11b257bc9b8b78341f50a"},{"name":"https://github.com/supertokens/supertokens-core/commit/d0773f2a6497411aeda5d4f03d3d135a2a3ae79c","tags":["x_refsource_MISC"],"url":"https://github.com/supertokens/supertokens-core/commit/d0773f2a6497411aeda5d4f03d3d135a2a3ae79c"},{"name":"https://github.com/supertokens/supertokens-core/releases/tag/v11.3.7","tags":["x_refsource_MISC"],"url":"https://github.com/supertokens/supertokens-core/releases/tag/v11.3.7"},{"name":"https://github.com/supertokens/supertokens-core/releases/tag/v11.4.7","tags":["x_refsource_MISC"],"url":"https://github.com/supertokens/supertokens-core/releases/tag/v11.4.7"},{"name":"https://github.com/supertokens/supertokens-core/releases/tag/v12.0.10","tags":["x_refsource_MISC"],"url":"https://github.com/supertokens/supertokens-core/releases/tag/v12.0.10"}],"source":{"advisory":"GHSA-gvx2-mwmj-wwvj","discovery":"UNKNOWN"},"title":"SuperTokens Core: SAML XML Signature Wrapping authentication bypass — any IdP user can authenticate as any other user"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-123798","datePublished":"2026-11-09T18:04:20.419Z","dateReserved":"2026-11-06T15:27:56.225Z","dateUpdated":"2026-11-09T18:04:20.419Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-11-09 19:16:46","lastModifiedDate":"2026-11-09 19:16:46","problem_types":["CWE-287","CWE-347","CWE-287 CWE-287: Improper Authentication","CWE-347 CWE-347: Improper Verification of Cryptographic Signature"],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","baseScore":8.1,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":5.2}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"123798","Ordinal":"1","Title":"SuperTokens Core: SAML XML Signature Wrapping authentication byp","CVE":"CVE-2026-123798","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"123798","Ordinal":"1","NoteData":"SuperTokens Core is an open source authentication server. From 11.3.0 until 11.3.7, 11.4.7, and 12.0.10, SAML.verifySamlResponseSignature calls OpenSAML SignatureValidator.validate without first applying SAMLSignatureProfileValidator. The Core can therefore accept a cryptographically valid signature that references a different XML element from the Response or Assertion whose NameID and attributes are used for authentication. An ordinary user of the configured identity provider can move a genuinely signed element elsewhere in the document while supplying an attacker-authored identity-bearing element, causing XML Signature Wrapping authentication as another IdP user. Both response-level and assertion-level signing paths are affected, and SP-initiated login remains reachable without enabling allowIDPInitiatedLogin. This issue is fixed in versions 11.3.7, 11.4.7, and 12.0.10.","Type":"Description","Title":"SuperTokens Core: SAML XML Signature Wrapping authentication byp"}]}}}