Vulnerability Description
@better-auth/stripe versions >= 1.4.11 and < 1.6.21, and >= 1.7.0-beta.0 and < 1.7.0-beta.10, contain an authorization bypass in organization subscription actions. The middleware validates the organization ID taken from the request query string against the authorizeReference callback, but the handler reads the organization ID only from the request body and falls back to the caller's active organization from their session. When these differ, an authenticated member of multiple organizations can perform subscription actions (cancel, change plan, restore, billing portal access) against an organization they belong to but should not manage, and can access another organization's billing details including payment methods, invoices, and subscription state.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/better-auth/better-auth/security/advisories/GHSA-h3rm-78g3-j7
- https://www.vulncheck.com/advisories/better-auth-stripe-before-authorization-byp
FAQ
What is CVE-2026-67329?
CVE-2026-67329 is a vulnerability with a CVSS score of 7.1 (HIGH). @better-auth/stripe versions >= 1.4.11 and < 1.6.21, and >= 1.7.0-beta.0 and < 1.7.0-beta.10, contain an authorization bypass in organization subscription actions. The middleware validates the organiz...
How severe is CVE-2026-67329?
CVE-2026-67329 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-67329?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.