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TI-2026-47625 Aliases CVE-2026-67329GHSA-mp8j-p2mc-4hgv

@better-auth/stripe before 1.6.21 Authorization Bypass via Organization Subscription

Priority LOW 31CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

@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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00313 24th percentileScored 2026-11-07
Fix Fixed stripe (better-auth): 1.6.21, 1.7.0-beta.10

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
better-authstripe1.4.11 to before 1.6.211.6.21Patch availableCNA
better-authstripe1.7.0-beta.0 to before 1.7.0-beta.101.7.0-beta.10Patch availableCNA
  • stripe Vendorbetter-auth Affected 1.4.11 to before 1.6.21 Fixed in 1.6.21 Patch available CNA
  • stripe Vendorbetter-auth Affected 1.7.0-beta.0 to before 1.7.0-beta.10 Fixed in 1.7.0-beta.10 Patch available CNA

Remediation

  • Fix · CNA stripe (better-auth) Fixed in 1.6.21
  • Fix · CNA stripe (better-auth) Fixed in 1.7.0-beta.10

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-67329
  2. 2026-10-03 Alias added: GHSA-mp8j-p2mc-4hgv

References

Advisory 1

  • TI-2025-38277 Better Auth: Unauthenticated API key creation through api-key plugin CVSS 4.0CRITICAL 9.3
  • TI-2026-47627 better-auth SCIM 1.5.0 before 1.7.0-beta.4 Authorization Bypass CVSS 4.0HIGH 8.7
  • TI-2025-20000 Beter Auth has an Open Redirect via Scheme-Less Callback Parameter CVSS 4.0MEDIUM 6.9
  • TI-2026-13066 better-auth better-icons scan_project_icons/sync_icon path traversal CVSS 4.0MEDIUM 4.8
  • TI-2026-79320 OAuth state accepted as Magic Link token in Better Auth CVSS 3.1CRITICAL 9.1
  • TI-2026-74552 Authentication bypass in Better Auth Magic Link verification CVSS 4.0CRITICAL 9.3
See all 39 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences