Rancher issues long-lived registration tokens to authenticate nodes and agents joining a downstream cluster. These tokens were stored and exposed in plaintext with no expiration, so a malicious user could obtain one either through the Rancher API, etcd, stored automation, or direct file access on a node, and could use it at any time to register a rogue node into the cluster.
"}]}], "references": [{"url": "https://github.com/rancher/rancher/security/advisories/GHSA-7r53-jvhg-9jq4"}, {"url": "https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-55997"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.4"}, "x_gcve": [{"vulnId": "CVE-2026-55997", "recordType": "advisory"}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-05T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-55997"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-06T03:55:23.543Z"}}]}, "vulnerability-lookup:meta": {"epss": {"cve": "CVE-2026-55997", "date": "2026-10-05", "epss": "0.00112", "percentile": "0.01266"}, "nvd": "{\"cve\":{\"id\":\"CVE-2026-55997\",\"sourceIdentifier\":\"meissner@suse.de\",\"published\":\"2026-08-05T08:16:34.330\",\"lastModified\":\"2026-09-01T20:54:51.287\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Rancher issues long-lived registration tokens to authenticate nodes and agents joining a downstream cluster. These tokens were stored and exposed in plaintext with no expiration, so a malicious user could obtain one either through the Rancher API, etcd, stored automation, or direct file access on a node, and could use it at any time to register a rogue node into the cluster.\"}],\"affected\":[{\"source\":\"meissner@suse.de\",\"affectedData\":[{\"vendor\":\"rancher\",\"product\":\"rancher\",\"defaultStatus\":\"unaffected\",\"packageName\":\"github.com/rancher/rancher\",\"versions\":[{\"version\":\"2.14.0\",\"lessThan\":\"2.14.4\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"2.13.0\",\"lessThan\":\"2.13.8\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"meissner@suse.de\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.0,\"impactScore\":6.0}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-08-05T00:00:00+00:00\",\"id\":\"CVE-2026-55997\",\"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-312\"}]}],\"references\":[{\"url\":\"https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-55997\",\"source\":\"meissner@suse.de\"},{\"url\":\"https://github.com/rancher/rancher/security/advisories/GHSA-7r53-jvhg-9jq4\",\"source\":\"meissner@suse.de\"}]}}", "vulnrichment": {"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-55997\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-05T13:07:55.359575Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-05T13:08:00.819Z\"}}], \"cna\": {\"title\": \"Long-lived Rancher registration token exposed in plaintext\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 8.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"rancher\", \"product\": \"rancher\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.14.0\", \"lessThan\": \"2.14.4\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"2.13.0\", \"lessThan\": \"2.13.8\", \"versionType\": \"semver\"}], \"packageName\": \"github.com/rancher/rancher\", \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://github.com/rancher/rancher/security/advisories/GHSA-7r53-jvhg-9jq4\"}, {\"url\": \"https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-55997\"}], \"x_generator\": {\"engine\": \"Vulnogram 1.0.4\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Rancher issues long-lived registration tokens to authenticate nodes and agents joining a downstream cluster. These tokens were stored and exposed in plaintext with no expiration, so a malicious user could obtain one either through the Rancher API, etcd, stored automation, or direct file access on a node, and could use it at any time to register a rogue node into the cluster.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Rancher issues long-lived registration tokens to authenticate nodes and agents joining a downstream cluster. These tokens were stored and exposed in plaintext with no expiration, so a malicious user could obtain one either through the Rancher API, etcd, stored automation, or direct file access on a node, and could use it at any time to register a rogue node into the cluster.
\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-312\", \"description\": \"CWE-312 Cleartext storage of sensitive information\"}]}], \"providerMetadata\": {\"orgId\": \"404e59f5-483d-4b8a-8e7a-e67604dd8afb\", \"shortName\": \"suse\", \"dateUpdated\": \"2026-08-05T07:53:00.194Z\"}}}", "cveMetadata": "{\"cveId\": \"CVE-2026-55997\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-06T03:55:23.543Z\", \"dateReserved\": \"2026-06-18T09:26:55.987Z\", \"assignerOrgId\": \"404e59f5-483d-4b8a-8e7a-e67604dd8afb\", \"datePublished\": \"2026-08-05T07:53:00.194Z\", \"assignerShortName\": \"suse\"}", "dataType": "CVE_RECORD", "dataVersion": "5.2"}}}