HIGHVulnerability
CVE-2026-67328
@better-auth/sso versions before 1.6.21 contain multiple authentication bypass vulnerabilities in SSO provider handling that allow attackers to sign in as arbitrary users. Attackers can exploit domain verification parsing mismatches, orphaned provider accounts, unbound SAML assertions, or reflected XSS on logout endpoints to gain unauthorized session access and account takeover.
Properties
- severity
- HIGH
- score
- 8.1
- epss_score
- 0.00278
- cve_id
- CVE-2026-67328
- vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- published_at
- 2026-08-01T13:17:03.380
- last_modified
- 2026-09-08T20:34:34.997
- epss_percentile
- 0.20004
Related Entities (3)
ENRICHED_BY (1)
→[Source]FIRST EPSS
DESCRIBED_BY (1)
→[Source]NVD
HAS_WEAKNESS (1)
→[Weakness]Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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