CVE-2026-42339— New API: SSRF Filter Bypass via 0.0.0.0
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I. Basic Information for CVE-2026-42339
Vulnerability Information
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Vulnerability Title
New API: SSRF Filter Bypass via 0.0.0.0
Source: NVD (National Vulnerability Database)
Vulnerability Description
New API is a large language mode (LLM) gateway and artificial intelligence (AI) asset management system. In versions 0.11.9-alpha.1 and prior, the SSRF protection introduced in v0.9.0.5 (CVE-2025-59146) and hardened in v0.9.6 (CVE-2025-62155) does not block the unspecified address 0.0.0.0. A regular (non-admin) user holding any valid API token can send a multimodal request to /v1/chat/completions, /v1/responses, or /v1/messages with 0.0.0.0 as the image/file URL host, bypassing the private-IP filter and causing the server to issue HTTP requests to localhost. This constitutes at minimum a blind SSRF; when the request is routed through an AWS/Bedrock Claude adaptor, the fetched content is inlined into the model response, upgrading it to a full-read SSRF. At time of publication, there are no publicly available patches.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
服务端请求伪造(SSRF)
Source: NVD (National Vulnerability Database)
Vulnerability Title
New API 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
New API是QuantumNous开源的一个接口软件。 New API 0.11.9-alpha.1及之前版本存在代码问题漏洞，该漏洞源于SSRF保护未阻止未指定地址0.0.0.0，可能导致持有有效API令牌的用户绕过私有IP过滤器向本地主机发出HTTP请求。
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 |
|---|---|---|---|---|
| QuantumNous | new-api | <= 0.11.9-alpha.1 | - |
II. Public POCs for CVE-2026-42339
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- SSRF Filter Bypass via 0.0.0.0 · Advisory · QuantumNous/new-api · GitHubx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2026-42339
IV. Related Vulnerabilities
Same product: new-api
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New API: IDOR in VideoProxy allows cross-user video content - CVE-2026-25802
New API has Potential XSS in its MarkdownRenderer component - CVE-2026-25591
New API has an SQL LIKE Wildcard Injection DoS via Token Sea
Same vendor: QuantumNous
- CVE-2026-41432
New API: Stripe Webhook Signature Bypass via Empty Secret En - CVE-2026-32879
New API has passkey-based secure step-up verification bypass - CVE-2026-30886
New API: IDOR in VideoProxy allows cross-user video content - CVE-2026-25802
New API has Potential XSS in its MarkdownRenderer component - CVE-2026-25591
New API has an SQL LIKE Wildcard Injection DoS via Token Sea
Same weakness: CWE-918
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FastGPT: SSRF Vulnerability in Laf Workflow Node via Missing
V. Comments for CVE-2026-42339
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