{"id":78522,"date":"2026-05-16T00:03:02","date_gmt":"2026-05-15T20:33:02","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-45395-open-webui-missing-workspace-tools-authorization-check-on-tool-update-endpoint-allows-privilege-escalation-to-code-execution\/"},"modified":"2026-05-16T00:03:02","modified_gmt":"2026-05-15T20:33:02","slug":"cve-2026-45395-open-webui-missing-workspace-tools-authorization-check-on-tool-update-endpoint-allows-privilege-escalation-to-code-execution","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-45395-open-webui-missing-workspace-tools-authorization-check-on-tool-update-endpoint-allows-privilege-escalation-to-code-execution\/","title":{"rendered":"CVE-2026-45395 &#8211; Open WebUI: Missing `workspace.tools` Authorization Check on Tool Update Endpoint Allows Privilege Escalation to Code Execution"},"content":{"rendered":"<p>CVE ID :CVE-2026-45395<\/p>\n<p>  Published : May 15, 2026, 8:33 p.m. | 24\u00a0minutes ago<\/p>\n<p>  Description :Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, the tool update endpoint (POST \/api\/v1\/tools\/id\/{id}\/update) is missing the workspace.tools permission check that is present on the tool create endpoint. This allows a user who has been explicitly denied tool management capabilities ( and who the administrator considers untrusted for code execution ) to replace a tool&#8217;s server-side Python content and trigger execution, bypassing the intended workspace.tools security boundary. This vulnerability is fixed in 0.9.5.<\/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-2026-45395 Published : May 15, 2026, 8:33 p.m. | 24\u00a0minutes ago Description :Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, the tool update endpoint (POST \/api\/v1\/tools\/id\/{id}\/update) is missing the workspace.tools permission check that is present on the tool create endpoint. This allows a user who &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-78522","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/78522","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=78522"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/78522\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=78522"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=78522"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=78522"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}