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CVE-2026-67332: @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. Attacker

mediumCVSS 6.4CVE-2026-67332
@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.

Details

Source
NVD Recent CVEs (US · database · site)
Severity
medium — CVSS 6.4
Published
2026-08-01
Last updated
2026-08-01
Exploitation
Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-67332

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-67332coverage & exploitation statusNVD · CVE.org

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