CVE-2023-48309 — NextAuth
NextAuth.js provides authentication for Next.js. `next-auth` applications prior to version 4.24.5 that rely on the default Middleware authorization are affected by a vulnerability. A bad actor could create an empty/mock user, by getting hold of a NextAuth.js-issued JWT from an in
Published
2023-11-20T18:25:01.896Z
Last modified
2024-08-29T13:41:03.796Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
01What is this vulnerability?
NextAuth.js provides authentication for Next.js. `next-auth` applications prior to version 4.24.5 that rely on the default Middleware authorization are affected by a vulnerability. A bad actor could create an empty/mock user, by getting hold of a NextAuth.js-issued JWT from an interrupted OAuth sign-in flow (state, PKCE or nonce). Manually overriding the `next-auth.session-token` cookie value…
02Affected products
| Vendor | Product | Versions |
|---|
| nextauthjs | next | auth — < 4.24.5 |
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2023-11-20T18:25:01.896Z
- Last modified: 2024-08-29T13:41:03.796Z
09References
- github.com — https://github.com/nextauthjs/next-auth/security/advisories/GHSA-v64w-49xw-qq89
- github.com — https://github.com/nextauthjs/next-auth/commit/d237059b6d0cb868c041ba18b698e0cee…
- authjs.dev — https://authjs.dev/guides/basics/role-based-access-control
- next-auth.js.org — https://next-auth.js.org/configuration/nextjs#advanced-usage
- next-auth.js.org — https://next-auth.js.org/configuration/nextjs#middlewar
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