{"id":80852,"date":"2026-06-21T06:45:08","date_gmt":"2026-06-21T03:15:08","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-12773-berriai-litellm-mcp-proxy-user_api_key_auth_mcp-py-userapikeyauth-improper-authentication\/"},"modified":"2026-06-21T06:45:08","modified_gmt":"2026-06-21T03:15:08","slug":"cve-2026-12773-berriai-litellm-mcp-proxy-user_api_key_auth_mcp-py-userapikeyauth-improper-authentication","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-12773-berriai-litellm-mcp-proxy-user_api_key_auth_mcp-py-userapikeyauth-improper-authentication\/","title":{"rendered":"CVE-2026-12773 &#8211; BerriAI litellm MCP Proxy user_api_key_auth_mcp.py UserAPIKeyAuth improper authentication"},"content":{"rendered":"<p>CVE ID :CVE-2026-12773<\/p>\n<p>  Published : June 21, 2026, 3:15 a.m. | 2\u00a0hours, 28\u00a0minutes ago<\/p>\n<p>  Description :A weakness has been identified in BerriAI litellm up to 1.59.8. Affected is the function UserAPIKeyAuth of the file litellm\/proxy\/_experimental\/mcp_server\/auth\/user_api_key_auth_mcp.py of the component MCP Proxy. Executing a manipulation can lead to improper authentication. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure.<\/p>\n<p>  Severity: 0.0 | NA<\/p>\n<p>  Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID :CVE-2026-12773 Published : June 21, 2026, 3:15 a.m. | 2\u00a0hours, 28\u00a0minutes ago Description :A weakness has been identified in BerriAI litellm up to 1.59.8. Affected is the function UserAPIKeyAuth of the file litellm\/proxy\/_experimental\/mcp_server\/auth\/user_api_key_auth_mcp.py of the component MCP Proxy. Executing a manipulation can lead to improper authentication. The attack may be launched remotely. The &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-80852","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/80852","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=80852"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/80852\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=80852"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=80852"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=80852"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}