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CVE-2026-42339

New API: SSRF Filter Bypass via 0.0.0.0

HIGH
7.1
CVSS Score
Published: May 8, 2026 at 10:21 PM UTC
Updated: July 24, 2026 at 09:20 PM UTC
2 products affected across 2 vendorsNewapiNew API

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Severity
HIGH7.1
Exploit prediction
EPSS 0.3%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Newapi· Newapi
95%
v < 0.11.90.11.9 alpha1
Affected range stops below 0.11.9, so it looks safe — our inference, not a vendor statement
New API· Quantumnous
60%
v ≤ 0.11.9-alpha.1

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_CONFIRMExploitMitigationVendor Advisory
Source: cverecord
https://github.com/QuantumNous/new-api/security/advisories/GHSA-v5c3-6wvc-pc2q

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHGitHub_M
Vector?

Quick Info

StatusANALYZED
CWE
CWE-918

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