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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Newapi | New Api | < 0.11.9 |
Related Weaknesses (CWE)
References
- https://github.com/QuantumNous/new-api/security/advisories/GHSA-v5c3-6wvc-pc2qExploitMitigationVendor Advisory
- https://github.com/QuantumNous/new-api/security/advisories/GHSA-v5c3-6wvc-pc2qExploitMitigationVendor Advisory
FAQ
What is CVE-2026-42339?
CVE-2026-42339 is a vulnerability with a CVSS score of 7.1 (HIGH). 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-2025-5914...
How severe is CVE-2026-42339?
CVE-2026-42339 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-42339?
Check the references section above for vendor advisories and patch information. Affected products include: Newapi New Api.