{"id":"CVE-2026-59822","vendor_project":"BerriAI","product":"LiteLLM","vulnerability_name":"BerriAI LiteLLM Improper Authentication Vulnerability","date_added":"2026-09-02","due_date":"2026-09-16","known_ransomware_use":"Unknown","short_description":"BerriAI LiteLLM contains an improper authentication vulnerability in the MCP Streamable HTTP endpoint that could allow an unauthenticated attacker to establish an authenticated MCP session using an arbitrary Bearer token.","required_action":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","cwes":"CWE-287;CWE-306","cvss_version":"4.0","cvss_severity":"HIGH","cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","nvd_published":"2026-07-08","nvd_status":"Analyzed","epss":0.0087,"epss_percentile":0.57318,"cvss_score":8.8,"days_published_to_kev":56,"source":"https://data.cybermax-tools.workers.dev/cve/CVE-2026-59822","by":"CyberMax"}