CVE-2022-35924
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-35924
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-35924.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-35924
- Aliases
- Related
- Published
- 2022-08-02T18:15:08Z
- Modified
- 2025-01-08T14:15:27.116825Z
- Severity
-
- 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
NextAuth.js is a complete open source authentication solution for Next.js applications.
next-authusers who are using theEmailProvidereither in versions before4.10.3or3.29.10are affected. If an attacker could forge a request that sent a comma-separated list of emails (eg.:attacker@attacker.com,victim@victim.com) to the sign-in endpoint, NextAuth.js would send emails to both the attacker and the victim's e-mail addresses. The attacker could then login as a newly created user with the email beingattacker@attacker.com,victim@victim.com. This means that basic authorization likeemail.endsWith("@victim.com")in thesignIncallback would fail to communicate a threat to the developer and would let the attacker bypass authorization, even with an@attacker.comaddress. This vulnerability has been patched inv4.10.3andv3.29.10by normalizing the email value that is sent to the sign-in endpoint before accessing it anywhere else. We also added anormalizeIdentifiercallback on theEmailProviderconfiguration, where you can further tweak your requirements for what your system considers a valid e-mail address. (E.g.: strict RFC2821 compliance). Users are advised to upgrade. There are no known workarounds for this vulnerability. If for some reason you cannot upgrade, you can normalize the incoming request using Advanced Initialization. - References
-
- https://github.com/nextauthjs/next-auth/security/advisories/GHSA-xv97-c62v-4587
- https://next-auth.js.org/configuration/callbacks#sign-in-callback
- https://next-auth.js.org/configuration/initialization#advanced-initialization
- https://next-auth.js.org/providers/email
- https://next-auth.js.org/providers/email#normalizing-the-e-mail-address
- https://github.com/nextauthjs/next-auth/commit/afb1fcdae3cc30445038ef588e491d139b916003
- https://en.wikipedia.org/wiki/Email_address#Local-part
- https://nodemailer.com/message/addresses
Affected packages
Git / github.com/nextauthjs/next-auth
Affected ranges
- Type
- GIT
- Repo
- https://github.com/nextauthjs/next-auth
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed