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CVE-2026-67329— @better-auth/stripe before 1.6.21 Authorization Bypass via Organization Subscription

Quick assessment

Affected
better-auth stripe
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

better-auth stripe是better-auth团队开源的一款在线支付处理平台。 better-auth stripe 1.4.11版本至1.6.21之前版本和1.7.0-beta.0版本至1.7.0-beta.10之前版本存在授权问题漏洞，该漏洞源于对组织ID验证不当，导致授权绕过，可能使已认证的多组织成员对其所属但无权管理的组织执行订阅操作，并访问其他组织的账单详情。

CVSS 7.1 · High EPSS 0.31% · P22

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

Affected Version Matrix 4

VendorProduct Version RangeStatus
better-auth stripe 1.4.11< 1.6.21 affected
1.6.21 unaffected
1.7.0-beta.0< 1.7.0-beta.10 affected
1.7.0-beta.10 unaffected
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I. Basic Information for CVE-2026-67329

Vulnerability Information
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Vulnerability Title
@better-auth/stripe before 1.6.21 Authorization Bypass via Organization Subscription
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
better-auth stripe 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
better-auth stripe是better-auth团队开源的一款在线支付处理平台。 better-auth stripe 1.4.11版本至1.6.21之前版本和1.7.0-beta.0版本至1.7.0-beta.10之前版本存在授权问题漏洞，该漏洞源于对组织ID验证不当，导致授权绕过，可能使已认证的多组织成员对其所属但无权管理的组织执行订阅操作，并访问其他组织的账单详情。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
better-auth stripe 1.4.11 ~ 1.6.21 -
better-auth stripe 1.7.0-beta.0 ~ 1.7.0-beta.10 -

II. Public POCs for CVE-2026-67329

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9066 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-67329

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Vendor Advisories for CVE-2026-67329 (1)

Other References for CVE-2026-67329 (1)

Same Patch Batch · better-auth · 2026-08-01 · 14 CVEs total

CVE-2026-67330 9.9 CRITICAL better-auth SCIM 1.4.0-beta.27 through 1.6.21 Account Takeover via Provider-ID Collision
CVE-2026-67336 8.7 HIGH better-auth before 1.6.11 Insecure Cryptographic Defaults via oidcProvider
CVE-2026-67327 8.3 HIGH better-auth before 1.6.22 Account Takeover via Magic-Link Email-OTP
CVE-2026-67331 8.3 HIGH better-auth SCIM 1.5.0 before 1.7.0-beta.4 Authorization Bypass
CVE-2026-67328 8.1 HIGH @better-auth/sso before 1.6.21 Account Takeover via SSO
CVE-2026-67333 7.2 HIGH better-auth before 1.6.13 Stored XSS via javascript redirect_uri
CVE-2025-71403 7.1 HIGH better-auth before 1.1.20 Open Redirect via trustedOrigins Bypass
CVE-2026-67337 6.5 MEDIUM better-auth before 1.4.9 Two-Factor Authentication Bypass via session.cookieCache
CVE-2026-67332 6.4 MEDIUM @better-auth/oauth-provider before 1.7.0-beta.4 Authorization Bypass
CVE-2026-67335 5.3 MEDIUM better-auth before 1.6.2 OAuth State Validation Bypass
CVE-2025-71404 5.1 MEDIUM better-auth before 1.1.16 Reflected XSS via error parameter
CVE-2026-67334 3.8 LOW better-auth Stale Sessions Persist After User Deletion
CVE-2025-71402 2.0 LOW better-auth before 1.4.0 Session Revocation via Forged Cookie

IV. Related Vulnerabilities

Same vendor: better-auth
Same weakness: CWE-639

V. Comments for CVE-2026-67329

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