{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-73419", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-12T14:32:11.795Z", "datePublished": "2026-08-12T20:23:39.174Z", "dateUpdated": "2026-08-12T20:23:39.174Z"}, "containers": {"cna": {"title": "NextAuth.js: OAuth state, nonce, and PKCE check cookies are not bound to the provider that created them", "problemTypes": [{"descriptions": [{"cweId": "CWE-345", "lang": "en", "description": "CWE-345: Insufficient Verification of Data Authenticity", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-346", "lang": "en", "description": "CWE-346: Origin Validation Error", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-940", "lang": "en", "description": "CWE-940: Improper Verification of Source of a Communication Channel", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/nextauthjs/next-auth/security/advisories/GHSA-x445-f3h2-j279", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/nextauthjs/next-auth/security/advisories/GHSA-x445-f3h2-j279"}, {"name": "https://github.com/nextauthjs/next-auth/pull/13469", "tags": ["x_refsource_MISC"], "url": "https://github.com/nextauthjs/next-auth/pull/13469"}, {"name": "https://github.com/nextauthjs/next-auth/commit/5bca2399a79ba8d116ca5179b4b1ebcd152e7f05", "tags": ["x_refsource_MISC"], "url": "https://github.com/nextauthjs/next-auth/commit/5bca2399a79ba8d116ca5179b4b1ebcd152e7f05"}, {"name": "https://github.com/nextauthjs/next-auth/commit/9f7a97fade9b1319bb9ac19fc9828d62e0a2a852", "tags": ["x_refsource_MISC"], "url": "https://github.com/nextauthjs/next-auth/commit/9f7a97fade9b1319bb9ac19fc9828d62e0a2a852"}, {"name": "https://github.com/nextauthjs/next-auth/releases/tag/@auth/core@0.41.3", "tags": ["x_refsource_MISC"], "url": "https://github.com/nextauthjs/next-auth/releases/tag/@auth/core@0.41.3"}, {"name": "https://github.com/nextauthjs/next-auth/releases/tag/next-auth@4.24.15", "tags": ["x_refsource_MISC"], "url": "https://github.com/nextauthjs/next-auth/releases/tag/next-auth@4.24.15"}, {"name": "https://github.com/nextauthjs/next-auth/releases/tag/next-auth@5.0.0-beta.32", "tags": ["x_refsource_MISC"], "url": "https://github.com/nextauthjs/next-auth/releases/tag/next-auth@5.0.0-beta.32"}], "affected": [{"vendor": "nextauthjs", "product": "next-auth", "versions": [{"version": "< 4.24.15", "status": "affected"}, {"version": ">= 5.0.0-beta.4, < 5.0.0-beta.32", "status": "affected"}]}, {"vendor": "@auth", "product": "core", "versions": [{"version": "< 0.41.3", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-12T20:23:39.174Z"}, "descriptions": [{"lang": "en", "value": "NextAuth.js provides authentication for Next.js. Prior to@auth/core 0.41.3 and next-auth 4.24.15 and 5.0.0-beta.32, Auth.js stores the OAuth/OIDC anti-CSRF checks state, nonce, and the PKCE verifier in global cookies that are not bound to the provider that created them. On callback, a check value minted during a sign-in started with one provider can satisfy the callback for a different provider because the stored cookie is not verified against the callback provider's identity, including the provider ID, issuer, client ID, or redirect URI. In a multi-provider application that permits account linking while logged in, when one provider's authorization request is observable and a target provider callback can be satisfied without a PKCE verifier, an attacker can lure a victim into starting a legitimate same-origin flow and link the attacker's target-provider account to the victim's Auth.js user. The linked provider grants the attacker persistent sign-in to the victim's account, while cross-site request forgery alone is insufficient. This issue is fixed in @auth/core 0.41.3 and next-auth 4.24.15 and 5.0.0-beta.32."}], "source": {"advisory": "GHSA-x445-f3h2-j279", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "next-auth", "vendor": "nextauthjs", "versions": [{"status": "affected", "version": "< 4.24.15"}, {"status": "affected", "version": ">= 5.0.0-beta.4, < 5.0.0-beta.32"}]}, {"product": "core", "vendor": "@auth", "versions": [{"status": "affected", "version": "< 0.41.3"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "NextAuth.js provides authentication for Next.js. Prior to@auth/core 0.41.3 and next-auth 4.24.15 and 5.0.0-beta.32, Auth.js stores the OAuth/OIDC anti-CSRF checks state, nonce, and the PKCE verifier in global cookies that are not bound to the provider that created them. On callback, a check value minted during a sign-in started with one provider can satisfy the callback for a different provider because the stored cookie is not verified against the callback provider's identity, including the provider ID, issuer, client ID, or redirect URI. In a multi-provider application that permits account linking while logged in, when one provider's authorization request is observable and a target provider callback can be satisfied without a PKCE verifier, an attacker can lure a victim into starting a legitimate same-origin flow and link the attacker's target-provider account to the victim's Auth.js user. The linked provider grants the attacker persistent sign-in to the victim's account, while cross-site request forgery alone is insufficient. This issue is fixed in @auth/core 0.41.3 and next-auth 4.24.15 and 5.0.0-beta.32."}], "id": "CVE-2026-73419", "lastModified": "2026-08-12T21:17:41.033", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 5.2, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-08-12T21:17:41.033", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/nextauthjs/next-auth/commit/5bca2399a79ba8d116ca5179b4b1ebcd152e7f05"}, {"source": "security-advisories@github.com", "url": "https://github.com/nextauthjs/next-auth/commit/9f7a97fade9b1319bb9ac19fc9828d62e0a2a852"}, {"source": "security-advisories@github.com", "url": "https://github.com/nextauthjs/next-auth/pull/13469"}, {"source": "security-advisories@github.com", "url": "https://github.com/nextauthjs/next-auth/releases/tag/@auth/core@0.41.3"}, {"source": "security-advisories@github.com", "url": "https://github.com/nextauthjs/next-auth/releases/tag/next-auth@4.24.15"}, {"source": "security-advisories@github.com", "url": "https://github.com/nextauthjs/next-auth/releases/tag/next-auth@5.0.0-beta.32"}, {"source": "security-advisories@github.com", "url": "https://github.com/nextauthjs/next-auth/security/advisories/GHSA-x445-f3h2-j279"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-345"}, {"lang": "en", "value": "CWE-346"}, {"lang": "en", "value": "CWE-940"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}