{"id":"CVE-2026-25705","state":"PUBLISHED","title":"Rancher Extensions have arbitrary file access via path traversal","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.","publishedAt":"2026-05-13T08:00:46.097Z","updatedAt":"2026-05-14T03:55:59.252Z","severity":{"score":8.4,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H","source":"suse"},"assigner":"suse","products":["SUSE rancher"],"affected":[{"vendor":"SUSE","product":"rancher","packageName":"github.com/rancher/rancher","defaultStatus":"unaffected","versions":[{"version":"2.14.0","status":"affected","lessThan":"2.14.1","versionType":"semver"},{"version":"2.13.0","status":"affected","lessThan":"2.13.5","versionType":"semver"},{"version":"2.12.0","status":"affected","lessThan":"2.12.9","versionType":"semver"},{"version":"2.10.11","status":"affected","lessThan":"2.11.13","versionType":"semver"}]}],"references":["https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-25705","https://github.com/rancher/rancher/security/advisories/GHSA-5v3h-x4wf-5c35"],"weaknesses":["CWE-35"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/25xxx/CVE-2026-25705.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-25705","state":"PUBLISHED","datePublished":"2026-05-13T08:00:46.097Z","dateUpdated":"2026-05-14T03:55:59.252Z","assignerShortName":"suse","assignerOrgId":"404e59f5-483d-4b8a-8e7a-e67604dd8afb","dateReserved":"2026-02-05T15:37:24.184Z"},"containers":{"cna":{"title":"Rancher Extensions have arbitrary file access via path traversal","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."}],"affected":[{"vendor":"SUSE","product":"rancher","packageName":"github.com/rancher/rancher","defaultStatus":"unaffected","versions":[{"version":"2.14.0","status":"affected","lessThan":"2.14.1","versionType":"semver"},{"version":"2.13.0","status":"affected","lessThan":"2.13.5","versionType":"semver"},{"version":"2.12.0","status":"affected","lessThan":"2.12.9","versionType":"semver"},{"version":"2.10.11","status":"affected","lessThan":"2.11.13","versionType":"semver"}]}],"references":[{"url":"https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-25705"},{"url":"https://github.com/rancher/rancher/security/advisories/GHSA-5v3h-x4wf-5c35"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"HIGH","baseScore":8.4,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-35","lang":"en","description":"CWE-35 Path traversal: '.../...//'","type":"CWE"}]}],"providerMetadata":{"shortName":"suse","orgId":"404e59f5-483d-4b8a-8e7a-e67604dd8afb","dateUpdated":"2026-05-13T08:01:27.283Z"},"credits":[{"lang":"en","value":"https://github.com/KoreaSecurity","type":"finder"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-13T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-25705"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-14T03:55:59.252Z"}}]}}}