{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-50152", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-03T20:54:20.431Z", "datePublished": "2026-08-27T20:53:42.353Z", "dateUpdated": "2026-09-01T14:48:11.476Z" }, "containers": { "cna": { "title": "Ceph Monitor subscription handler improperly authorizes config-key store reads, exposing cluster secrets to read-only users", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-285", "lang": "en", "description": "CWE-285: Improper Authorization", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L", "version": "3.1" } } ], "references": [ { "name": "https://github.com/ceph/ceph/security/advisories/GHSA-rg9p-5xcp-wm8h", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/ceph/ceph/security/advisories/GHSA-rg9p-5xcp-wm8h" }, { "name": "https://github.com/ceph/ceph/commit/d971bb2b6199f70b1708a20a63fa944ee7a94727", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/ceph/ceph/commit/d971bb2b6199f70b1708a20a63fa944ee7a94727" }, { "name": "https://github.com/ceph/ceph/commit/f2840d2fd338ab5de2865f0f78684bbf7b888c84", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/ceph/ceph/commit/f2840d2fd338ab5de2865f0f78684bbf7b888c84" } ], "affected": [ { "vendor": "ceph", "product": "ceph", "versions": [ { "version": ">= 19.0.0, < 19.2.6", "status": "affected" }, { "version": ">= 20.0.0, < 20.2.4", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-27T20:53:42.353Z" }, "descriptions": [ { "lang": "en", "value": "Ceph is an open-source distributed storage platform providing object, block, and file storage. In versions prior to 20.2.4 and 19.2.6, the Monitor subscription handler fails to properly authorize access to the configuration-key store, allowing any CephX user with only  `mon allow r` capabilities to read the entire store by sending a single crafted MMonSubscribe message. The config-key store holds sensitive secrets including OSD LUKS disk-encryption passphrases and, on cephadm-managed clusters, the SSH private key that cephadm uses to reach every host in the cluster. Because that key grants root on every node under the default cephadm configuration, a low-privileged read-only account can escalate to full cluster and host compromise. This issue is fixed in versions 20.2.4 and 19.2.6" } ], "source": { "advisory": "GHSA-rg9p-5xcp-wm8h", "discovery": "UNKNOWN" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-09-01T03:56:17.495692Z", "id": "CVE-2026-50152", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-01T14:48:11.476Z" } } ] } }