{"id":"CVE-2026-42339","aliases":["GHSA-v5c3-6wvc-pc2q","GO-2026-5652"],"url":"https://o3.security/vulnerability/CVE-2026-42339","summary":"New API: SSRF Filter Bypass via 0.0.0.0","details":"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.","published":"2026-05-08T22:21:53.902Z","modified":"2026-07-31T18:30:06.435229204Z","cvss":null,"epss":{"score":0.00258,"percentile":0.17333,"asOf":"2026-08-09"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/QuantumNous/new-api","fixedVersion":null}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42339.json"},{"type":"ADVISORY","url":"https://github.com/QuantumNous/new-api/security/advisories/GHSA-v5c3-6wvc-pc2q"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42339"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-31T18:30:06.435229204Z"}}