Technology · Auth.js
Auth.js NextAuth.js vulnerabilities
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Junglewise Threat Intelligence has tracked 7 vulnerabilities in Auth.js NextAuth.js: 0 in the last 7 days and 7 in the last 90 days, 2 of them critical and 0 exploited in the wild. The most recent, CVE-2026-73420, was published on 13 August 2026.
- Last 7 days
- 0
- Last 90 days
- 7
- Critical, all time
- 2
- Exploited in the wild
- 0
About Auth.js NextAuth.js
A complete open-source authentication solution for Next.js applications.
Latest Auth.js NextAuth.js vulnerabilities
- CVE-2026-73420: 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, the…mediumCVSS 4EPSS 0.7%
- 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…mediumCVSS 6.8EPSS 0.3%
- CVE-2026-73418: 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, the…highCVSS 7.5EPSS 0.9%
- Auth.js improper authorization via fail-open on configuration errorscriticalCVSS 9.1
- Auth.js denial of service via malformed Bearer headers in getTokenhighCVSS 7.5
- Auth.js incorrect behavior order in email normalizer allows account takeovercriticalCVSS 9.1
- Auth.js insufficient verification of OAuth provider in account linkingmediumCVSS 6.8
Most severe Auth.js NextAuth.js vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- Auth.js improper authorization via fail-open on configuration errorscriticalCVSS 9.1
- Auth.js incorrect behavior order in email normalizer allows account takeovercriticalCVSS 9.1
- CVE-2026-73418: 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, the…highCVSS 7.5EPSS 0.9%
- Auth.js denial of service via malformed Bearer headers in getTokenhighCVSS 7.5
- 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…mediumCVSS 6.8EPSS 0.3%
- Auth.js insufficient verification of OAuth provider in account linkingmediumCVSS 6.8
- CVE-2026-73420: 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, the…mediumCVSS 4EPSS 0.7%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 4 | 2 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 3 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/nextauth-js.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Auth.js NextAuth.js vulnerabilities", https://junglewise.ai/threats/technologies/nextauth-js, 26 September 2026.