{"id":78401,"date":"2026-05-13T11:30:46","date_gmt":"2026-05-13T08:00:46","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-25705-rancher-extensions-have-arbitrary-file-access-via-path-traversal\/"},"modified":"2026-05-13T11:30:46","modified_gmt":"2026-05-13T08:00:46","slug":"cve-2026-25705-rancher-extensions-have-arbitrary-file-access-via-path-traversal","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-25705-rancher-extensions-have-arbitrary-file-access-via-path-traversal\/","title":{"rendered":"CVE-2026-25705 &#8211; Rancher Extensions have arbitrary file access via path traversal"},"content":{"rendered":"<p>CVE ID :CVE-2026-25705<\/p>\n<p>  Published : May 13, 2026, 8 a.m. | 1\u00a0hour ago<\/p>\n<p>  Description :A vulnerability has been identified in [Rancher&#8217;s Extensions](https:\/\/ranchermanager.docs.rancher.com\/integrations-in-rancher\/rancher-extensions) where malicious code can be injected in Rancher through a path traversal in the `compressedEndpoint` field inside a `UIPlugin` deployment. A malicious UI extension could abuse that to:  *  Overwrite Rancher binaries or configuration to inject code.<\/p>\n<p>  *  Write to \/var\/lib\/rancher\/ to tamper with cluster state.<\/p>\n<p>  *  If hostPath volumes are mounted, write to the host node filesystem.<\/p>\n<p>  *  Use this issue to chain with other attack vectors.<\/p>\n<p>  Severity: 8.4 | HIGH<\/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-2026-25705 Published : May 13, 2026, 8 a.m. | 1\u00a0hour ago Description :A vulnerability has been identified in [Rancher&#8217;s Extensions](https:\/\/ranchermanager.docs.rancher.com\/integrations-in-rancher\/rancher-extensions) where malicious code can be injected in Rancher through a path traversal in the `compressedEndpoint` field inside a `UIPlugin` deployment. A malicious UI extension could abuse that to: * Overwrite Rancher binaries or &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-78401","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/78401","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=78401"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/78401\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=78401"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=78401"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=78401"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}