{"cve":"CVE-2026-25705","nvd":{"published":"2026-05-13T08:16:16.083","modified":"2026-10-26T14:10:00.130","status":"Awaiting Analysis","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H","score":8.4},"cwes":["CWE-35"],"references":["https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-25705","https://github.com/rancher/rancher/security/advisories/GHSA-5v3h-x4wf-5c35"],"products":[],"source":"nvd","synced_at":"2026-10-26T14:27:29.784594657+00:00"},"epss":{"cve":"CVE-2026-25705","score":0.00369,"percentile":0.30459,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-5v3h-x4wf-5c35","url":"https://osv.dev/vulnerability/GHSA-5v3h-x4wf-5c35","summary":"Rancher Extensions have arbitrary file access via path traversal","modified":"2026-09-10T03:51:04.822837838Z","packages":[{"ecosystem":"Go","name":"github.com/rancher/rancher","purl":"pkg:golang/github.com/rancher/rancher","ranges":[">=2.14.0 <2.14.1"],"fixed":["2.14.1"]},{"ecosystem":"Go","name":"github.com/rancher/rancher","purl":"pkg:golang/github.com/rancher/rancher","ranges":[">=2.13.0 <2.13.5"],"fixed":["2.13.5"]},{"ecosystem":"Go","name":"github.com/rancher/rancher","purl":"pkg:golang/github.com/rancher/rancher","ranges":[">=2.12.0 <2.12.9"],"fixed":["2.12.9"]},{"ecosystem":"Go","name":"github.com/rancher/rancher","purl":"pkg:golang/github.com/rancher/rancher","ranges":[">=2.10.11 <2.11.13"],"fixed":["2.11.13"]}]},{"id":"GO-2026-5154","url":"https://osv.dev/vulnerability/GO-2026-5154","summary":"Rancher Extensions have arbitrary file access via path traversal in github.com/rancher/rancher","modified":"2026-07-02T16:59:29.518260100Z","packages":[{"ecosystem":"Go","name":"github.com/rancher/rancher","purl":"pkg:golang/github.com/rancher/rancher","ranges":["all versions"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}