Improper Validation of Post-Login Redirect URL in nextjs-auth0

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-107369
StatePUBLISHED
AssignerOkta
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-13 21:17:32 UTC
Updated2026-10-13 21:17:32 UTC
DescriptionThe auth0/nextjs-auth0 SDK validates that the returnTo parameter is a same-origin URL. The SDK then stores this value and, in a later step, reconstructs it for the post-authentication redirect. The reconstruction logic can produce a URL that browsers interpret as an absolute or scheme-relative path, leading to a redirect to an unintended domain.

Risk And Classification

Primary CVSS: v3.1 6.1 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Problem Types: CWE-601 | CWE-601 URL Redirection to Untrusted Site ('Open Redirect')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
3.1CNADECLARED6.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Auth0 Nextjs-auth0 affected 4.32.0 semver Not specified

References

ReferenceSourceLinkTags
github.com/auth0/nextjs-auth0/security/advisories/GHSA-5vvp-h2v6-59j6 [email protected] github.com
trust.okta.com/security-advisories/improper-validation-of-post-login-redirec... [email protected] trust.okta.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

Solutions

CNA: Upgrade auth0/nextjs-auth0 to version 4.32.0 or greater.

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