CVE-2026-34969
Nhost is an open source Firebase alternative with GraphQL. Prior to 0.48.0, the auth service's OAuth provider callback flow places the refresh token directly into the redirect URL as a query parameter. Refresh tokens in URLs are logged in browser history, server access logs, HTTP Referer headers, and proxy/CDN logs. Note that the refresh token is one-time use and all of these leak vectors are on owned infrastructure or services integrated by the application developer. This vulnerability is fixed in 0.48.0.
Published:Apr 6, 2026
Last Modified:Apr 22, 2026
EPS:Apr 6, 2026
EPSS Score:0.00055
CVSS Score:7.5
Affected Products
Vendor
Product
Action
Vendor
Nhost
Product
Nhost
Nhost
Nhost
Vendor
Nhost
Product
Nhost\/auth
Nhost
Nhost\/auth
Exploits
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
