Open redirect via prefix-only base URL validation
Published Apr 19, 2022 · Updated Apr 23, 2025
Open redirect in NextAuth.js version 3 before 3.29.2 and version 4 before 4.3.2 allows remote attackers to redirect users. The default redirect callback accepts an untrusted callback URL when its string begins with the trusted base URL, rather than requiring the parsed origins to match. Exploitation requires a user to follow a crafted authentication link, after which the browser can be sent to an attacker-controlled site; the flaw does not itself execute code or alter server data.
Summary
What happened
Open redirect in NextAuth.js version 3 before 3.29.2 and version 4 before 4.3.2 allows remote attackers to redirect users. The default redirect callback accepts an untrusted callback URL when its string begins with the trusted base URL, rather than requiring the parsed origins to match. Exploitation requires a user to follow a crafted authentication link, after which the browser can be sent to an attacker-controlled site; the flaw does not itself execute code or alter server data.
The record
- CVE
- CVE-2022-24858
- Published
- Apr 19, 2022
- Updated
- Apr 23, 2025
- Vendor
- Auth.js
- Product
- NextAuth.js
- Classifications
- CWE-601, T1204.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 19, 2022CVE publishedPublication date reported by the CVE source.
- Apr 23, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 3.29.2, < 4.3.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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