High severity7.5NVD Advisory· Published Apr 6, 2026· Updated Apr 22, 2026
CVE-2026-34969
CVE-2026-34969
Description
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/nhost/nhostGo | < 0.0.0-20260330133707-294954e0fc3a | 0.0.0-20260330133707-294954e0fc3a |
Affected products
2Patches
Vulnerability mechanics
References
4- github.com/nhost/nhost/security/advisories/GHSA-g2qj-prgh-4g9rnvdExploitMitigationVendor AdvisoryWEB
- github.com/advisories/GHSA-g2qj-prgh-4g9rghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-34969ghsaADVISORY
- docs.nhost.io/products/auth/pkceghsaWEB
News mentions
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