New API: User List API Leaks Root User Access Token Leading to Privilege Escalation
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-200.
Summary
New API is a large language mode (LLM) gateway and artificial intelligence (AI) asset management system. Prior to 1.0.0-rc.7, the admin user list and user lookup APIs, including GET /api/user/, return User.AccessToken as access_token because User model objects are serialized after queries use Omit("password"), allowing an authenticated administrator to obtain the root user's bearer token and access root-only system configuration APIs. This issue is fixed in version 1.0.0-rc.7.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| QuantumNous | new-api | before 1.0.0-rc.7 | 1.0.0-rc.7 | Patch available | CNA |
| — | github.com/QuantumNous/new-api (Go) | before 1.0.0-rc.7 | 1.0.0-rc.7 | Patch available | GHSA-6x2c-phff-wx57 |
- new-api VendorQuantumNous Affected before 1.0.0-rc.7 Fixed in 1.0.0-rc.7 Patch available CNA
- github.com/QuantumNous/new-api (Go) Vendor— Affected before 1.0.0-rc.7 Fixed in 1.0.0-rc.7 Patch available GHSA-6x2c-phff-wx57
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:newapi:new_api:*:*:*:*:*:*:*:* | — | — | QuantumNous |
- cpe:2.3:a:newapi:new_api:*:*:*:*:*:*:*:* Versions — — ·QuantumNous
Remediation
- Fix · CNA new-api (QuantumNous) Fixed in 1.0.0-rc.7
- Fix · GHSA-6x2c-phff-wx57 github.com/QuantumNous/new-api (Go) Fixed in 1.0.0-rc.7 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-64859
- 2026-10-03 Alias added: GHSA-6x2c-phff-wx57
- 2026-10-31 EPSS moved to the 50th–90th percentile
References
Other 5
- https://github.com/QuantumNous/new-api/security/advisories/GHSA-6x2c-phff-wx57
- https://github.com/QuantumNous/new-api/pull/4929
- https://github.com/QuantumNous/new-api/commit/0936e2504655a5cbf7bc3c388f6d3e2bb24916d3
- https://github.com/QuantumNous/new-api/releases/tag/v1.0.0-rc.7
- https://github.com/QuantumNous/new-api
More QuantumNous vulnerabilities
- TI-2025-35042 QuantumNous new-api v.0.8.5.2 is vulnerable to Cross Site Scripting (XSS). CVSS 3.1HIGH 8.8
- TI-2026-30643 New API: SSRF Filter Bypass via 0.0.0.0 CVSS 4.0HIGH 7.1
- TI-2026-30031 New API: Stripe Webhook Signature Bypass via Empty Secret Enables Unlimited Quota Fraud CVSS 3.1HIGH 8.2
- TI-2026-20865 New API has Potential XSS in its MarkdownRenderer component CVSS 3.1HIGH 7.6
- TI-2026-20698 New API has an SQL LIKE Wildcard Injection DoS via Token Search CVSS 4.0HIGH 7.1
- TI-2026-23715 New API: IDOR in VideoProxy allows cross-user video content access via missing ownership check CVSS 3.1MEDIUM 6.5
Sources
- CVE-2026-64859 · CVE Program
- CVE-2026-64859 · NVD
- FIRST EPSS
- GHSA-6x2c-phff-wx57 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences