CVE-2026-41432
HighPublic exploitNew API: Stripe Webhook Signature Bypass via Empty Secret Enables Unlimited Quota Fraud
Published Apr 24, 2026 · Updated Oct 6, 2026 · Also known as GHSA-xff3-5c9p-2mr4, GO-2026-5753
Key Facts
Patch immediately- CVE-2026-41432 is a high-severity vulnerability (CVSS 8.2 v3.1) affecting New API (Newapi), github.com/QuantumNous/new-api (go).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 0.8% probability of exploitation in the next 30 days.
- Fixed versions are available, including github.com/QuantumNous/new-api 0.12.10, New API 0.12.10.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
CVSS v3.1
8.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
EPSS (30-day exploit likelihood)
0.8%
Higher than 54.0% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2026-41432 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
New API is a large language mode (LLM) gateway and artificial intelligence (AI) asset management system. Prior to version 0.12.10, a vulnerability exists in the Stripe webhook handler that allows an unauthenticated attacker to forge webhook events and credit arbitrary quota to their account without making any payment. This issue has been patched in version 0.12.10.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| New APINewapi | >= < 0.12.10 | 0.12.10 |
| github.com/QuantumNous/new-apigo | See advisory | 0.12.10 |
Patched Releases
github.com/QuantumNous/new-api
0.12.10
New API
0.12.10
Timeline
Publicly disclosed
Apr 24, 2026
Last updated
Oct 6, 2026
Weakness Type
- CWE-345 Insufficient Verification of Data Authenticity
- CWE-863 Incorrect Authorization
- CWE-1188 Initialization of a Resource with an Insecure Default
References
- advisoryGHSA advisory
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41432.json
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2026-41432
- articlehttps://docs.stripe.com/checkout/fulfillment#async-payment-methods
- articlehttps://docs.stripe.com/webhooks#verify-official-libraries
FAQ
Common Questions.
New API is a large language mode (LLM) gateway and artificial intelligence (AI) asset management system.
Affected: New API (Newapi) versions >= < 0.12.10; github.com/QuantumNous/new-api (go). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including github.com/QuantumNous/new-api 0.12.10, New API 0.12.10.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
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