Vulnerability in @Auth Core
CVE-2026-73419
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…
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N.
Affected products
- @Auth Core — versions < 0.41.3
- Nextauthjs Next-auth — versions < 4.24.15, >= 5.0.0-beta.4, < 5.0.0-beta.32
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-73419?
- CVE-2026-73419 is a medium-severity vulnerability in @Auth Core, classified under Insufficient Verification of Data Authenticity. CVSS score: 6.8/10. Published 2026-08-12.
- How severe is CVE-2026-73419?
- Medium severity. CVSS v3 base score is 6.8 out of 10.