@better-auth/oauth-provider before 1.7.0-beta.4 Authorization Bypass
@better-auth/oauth-provider before 1.7.0-beta.4 fails to bind access-token audience to the authorization grant, allowing clients to request tokens for unrelated resources. Attackers can complete an OAuth flow and obtain access tokens whose audience targets resource servers the authorization never covered, bypassing intended authorization boundaries.
CVE-2026-67332
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-67332
oauth-provider
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "better-auth",
"product": "oauth-provider",
"versions": [
{
"status": "affected",
"version": "1.4.8",
"lessThan": "1.7.0-beta.4",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "1.7.0-beta.4",
"versionType": "semver"
}
],
"packageURL": "pkg:npm/%40better-auth/oauth-provider",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-67332
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #12809 · Revision 1
- Added to Heist Feed
- Publisher date