Auth Bypass
AI/ML platforms accumulate auth-bypass vulnerabilities at the same rate as other web software, but the blast radius is unusual: a bypass on an inference endpoint exposes expensive compute, paid model access, and potentially other tenants' conversations. Common patterns we see in NVD and GHSA include misconfigured JWT verification in self-hosted inference servers, missing authorization checks on admin routes in ML platforms, IDOR on prediction-history endpoints, and SSRF that escapes a sandboxed agent into the platform's internal network. Open-source AI platforms (MLflow, Gradio, LangServe, Ollama) have shipped multiple high-severity auth-bypass CVEs since 2023; CISA KEV has flagged at least one (the MLflow path-traversal/auth chain). Defenses: keep self-hosted AI platforms patched aggressively, require auth on all model endpoints, network-segment inference servers, and treat any exposed AI service as if compute-cost abuse will happen.
| Severity | CVE | Headline | Package | CVSS |
|---|---|---|---|---|
| MEDIUM | CVE-2026-59207 | n8n: MCP tool bypasses credential domain allowlist | n8n | 6.5 |
| HIGH | CVE-2026-59206 | n8n: prototype pollution lets guests hit admin APIs | n8n | 7.1 |
| MEDIUM | CVE-2026-59208 | n8n: multi-issuer JWT sub collision bypasses auth | n8n | 6.8 |
| MEDIUM | CVE-2026-59209 | n8n: editor-level access leaks credential headers | n8n | 6.5 |
| MEDIUM | CVE-2026-59218 | Open WebUI: timing leak enables account enumeration | open-webui | 5.3 |
| HIGH | CVE-2026-59214 | Open WebUI: Pyodide sandbox bypass reaches admin RCE | open-webui | 7.3 |
| LOW | CVE-2026-59715 | Open WebUI: unauth Socket.IO bypass alters doc state | open-webui | 3.1 |
| MEDIUM | CVE-2026-59227 | Open WebUI: image-edit API bypasses admin permission gate | open-webui | 4.3 |
| LOW | CVE-2026-59226 | Open WebUI: deactivated users retain automation access | open-webui | 3.1 |
| MEDIUM | CVE-2026-59217 | Open WebUI: read-only users can inject files into RAG KBs | open-webui | 4.3 |
| MEDIUM | CVE-2026-59212 | Open WebUI: IDOR lets read-only users write/delete files | open-webui | 5.4 |
| HIGH | CVE-2026-59219 | Open WebUI: revoked JWTs bypass WebSocket auth | open-webui | 7.1 |
| LOW | CVE-2026-59215 | Open WebUI: IDOR leaks private channel/DM threads | open-webui | 3.1 |
| HIGH | CVE-2026-59216 | Open WebUI: session hijack enables cross-user code exec | open-webui | 7.7 |
| MEDIUM | CVE-2026-59223 | Open WebUI: SSRF via web-fetch blocklist bypass | open-webui | 4.3 |
| HIGH | CVE-2026-59224 | Open WebUI: terminal proxy allows user ID spoofing | open-webui | 8.0 |
| MEDIUM | CVE-2026-59225 | Open WebUI: arena bypass reaches restricted models | open-webui | 5.4 |
| MEDIUM | CVE-2026-59222 | Open WebUI: channel IDOR leaks tool-server API keys | open-webui | - |
| HIGH | CVE-2026-59221 | Open WebUI: encoded path traversal in terminal proxy | open-webui | 7.7 |
| MEDIUM | CVE-2026-59853 | SiYuan: broken access control leaks private note data | 6.5 |