CVE-2026-53512

critical

Description

Better Auth: OAuth refresh-token replay via missing client authentication on oidc-provider and mcp plugins

Details

Source: Mitre, NVD

Published: 2026-07-07

Risk Information

CVSS v2

Base Score: 9.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

Severity: High

CVSS v3

Base Score: 9.1

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Severity: Critical

EPSS

EPSS: 0.00013