CVE-2026-34969

LOW EPSS 18.2%
Published Apr 6, 20262mo ago · Modified Jun 17, 20262w ago
2.3 CVSS 4.0
Low
Find Similar
Published Apr 6, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
2.3
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
18.2% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 2

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor Information Exposure
CWE-598

Affected Products 1

VendorProductVersionRange
nhostnhost\/auth* <0.48.0

References 1

  • github.com https://github.com/nhost/nhost/security/advisories/GHSA-g2qj-prgh-4g9r
    ExploitMitigationVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.