{"id":"CVE-2026-41053","sourceIdentifier":"meissner@suse.de","published":"2026-06-30T12:16:23.580","lastModified":"2026-07-02T19:57:44.447","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"Incorrect authentication caching in the team member ship expansion of the Rancher Github authentication provider caused it granting principal access to any logged in user, in 2.13 before 2.13.6 and 2.14 before 2.14.2."}],"affected":[{"source":"meissner@suse.de","affectedData":[{"vendor":"SUSE","product":"Rancher","defaultStatus":"unaffected","packageName":"Rancher","modules":["github auth provider"],"repo":"https://github.com/rancher/rancher/","versions":[{"version":"2.14.0","lessThan":"2.14.2","versionType":"semver","status":"affected"},{"version":"2.13.0","lessThan":"2.13.6","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:L/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-06-30T00:00:00+00:00","id":"CVE-2026-41053","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-303"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*","versionStartIncluding":"2.13.0","versionEndExcluding":"2.13.6","matchCriteriaId":"53E5872E-9F92-4D2E-858D-4563A955B929"},{"vulnerable":true,"criteria":"cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*","versionStartIncluding":"2.14.0","versionEndExcluding":"2.14.2","matchCriteriaId":"3CF3233E-9836-4A06-A063-C83D9AE88156"}]}]}],"references":[{"url":"https://github.com/rancher/rancher/security/advisories/GHSA-4j6x-2764-m8gh","source":"meissner@suse.de","tags":["Patch","Vendor Advisory","Mitigation"]}]}