{"schemaVersion":3,"id":"CVE-2026-25705","aliases":["GHSA-5v3h-x4wf-5c35","GO-2026-5154","CGA-4939-66rw-j2wm","CGA-83w8-mqrr-4pjh","CGA-8p56-vhm8-wvpw","CGA-9phc-5gv9-qm5x","CGA-gr6v-77r5-g6fq","CGA-q5rm-vf85-6cgh","CGA-q73j-725c-mm4r","CGA-w8w8-6wc8-mcc3"],"status":"published","duplicateOf":null,"title":null,"description":"A vulnerability has been identified in [Rancher'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.\n\n  *  Write to /var/lib/rancher/ to tamper with cluster state.\n\n  *  If hostPath volumes are mounted, write to the host node filesystem.\n\n  *  Use this issue to chain with other attack vectors.","dates":{"published":"2026-05-13T08:00:46.097Z","modified":"2026-05-14T03:55:59.252Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.4,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":8.4,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · 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