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CVE-2026-33655— New API: SSRF Protection Bypass via Unresolved Hostname in Notification URLs

Quick assessment

Affected
QuantumNous new-api
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.

QuantumNous New API是QuantumNous个人开发者的一个接口软件。 QuantumNous New API 0.12.0-alpha.1之前版本存在服务端请求伪造漏洞，该漏洞源于默认SSRF防护配置未对主机名应用IP过滤，导致URL验证仅检查域允许/阻止规则但未解析主机名并验证解析后的IP地址，允许经过身份验证的用户配置指向内部或元数据IP地址的Webhook、Bark或Gotify通知URL。

CVSS 7.7 · High EPSS 0.44% · P37

Affected Version Matrix 1

VendorProduct Version RangeStatus
QuantumNous new-api < 0.12.0-alpha.1 affected
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I. Basic Information for CVE-2026-33655

Vulnerability Information
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Vulnerability Title
New API: SSRF Protection Bypass via Unresolved Hostname in Notification URLs
Source: CVE Program / CVE List V5
Vulnerability Description
New API is a large language mode (LLM) gateway and artificial intelligence (AI) asset management system. Prior to 0.12.0-alpha.1, the default SSRF protection configuration did not apply IP filtering to hostnames; with ApplyIPFilterForDomain disabled by default, URL validation checked domain allow/block rules but did not resolve a hostname and validate the resolved IP address, allowing authenticated users to configure Webhook, Bark, or Gotify notification URLs that point at an internal or metadata IP address. This issue is fixed in version 0.12.0-alpha.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
QuantumNous New API 服务端请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QuantumNous New API是QuantumNous个人开发者的一个接口软件。 QuantumNous New API 0.12.0-alpha.1之前版本存在服务端请求伪造漏洞，该漏洞源于默认SSRF防护配置未对主机名应用IP过滤，导致URL验证仅检查域允许/阻止规则但未解析主机名并验证解析后的IP地址，允许经过身份验证的用户配置指向内部或元数据IP地址的Webhook、Bark或Gotify通知URL。
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 < 0.12.0-alpha.1 -

II. Public POCs for CVE-2026-33655

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7764 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
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III. Intelligence Information for CVE-2026-33655

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Patches & Fixes for CVE-2026-33655 (1)

Vendor Advisories for CVE-2026-33655 (1)

Vendor Pages for CVE-2026-33655 (1)

IV. Related Vulnerabilities

Same product: new-api
Same vendor: QuantumNous
Same weakness: CWE-918

V. Comments for CVE-2026-33655

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