{"id":"CVE-2026-25705","sourceIdentifier":"meissner@suse.de","published":"2026-05-13T08:16:16.083","lastModified":"2026-10-26T14:10:00.130","vulnStatus":"Awaiting Analysis","cveTags":[],"descriptions":[{"lang":"en","value":"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."},{"lang":"es","value":"Una vulnerabilidad ha sido identificada en las [extensiones de Rancher](https://ranchermanager.docs.rancher.com/integrations-in-rancher/rancher-extensions) donde se puede inyectar código malicioso en Rancher a través de un salto de ruta en el campo “compressedEndpoint” dentro de un despliegue de “UIPlugin”. Una extensión de UI maliciosa podría abusar de ello para:\n  *  Sobrescribir binarios o la configuración de Rancher para inyectar código.\n  *  Escribir en /var/lib/rancher/ para manipular el estado del clúster.\n  *  Si los volúmenes hostPath están montados, escribir en el sistema de archivos del nodo host.\n  *  Usar este problema para encadenar con otros vectores de ataque."}],"affected":[{"source":"meissner@suse.de","affectedData":[{"vendor":"SUSE","product":"rancher","defaultStatus":"unaffected","packageName":"github.com/rancher/rancher","versions":[{"version":"2.14.0","lessThan":"2.14.1","versionType":"semver","status":"affected"},{"version":"2.13.0","lessThan":"2.13.5","versionType":"semver","status":"affected"},{"version":"2.12.0","lessThan":"2.12.9","versionType":"semver","status":"affected"},{"version":"2.10.11","lessThan":"2.11.13","versionType":"semver","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"meissner@suse.de","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H","baseScore":8.4,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.7,"impactScore":6.0}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-05-13T00:00:00+00:00","id":"CVE-2026-25705","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"meissner@suse.de","type":"Secondary","description":[{"lang":"en","value":"CWE-35"}]}],"references":[{"url":"https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-25705","source":"meissner@suse.de"},{"url":"https://github.com/rancher/rancher/security/advisories/GHSA-5v3h-x4wf-5c35","source":"meissner@suse.de"}]}