Description
A flaw was found in the MON subscription handler of Ceph, a distributed storage system. The handler does not properly authorize access to the config-key store when processing MMonSubscribe messages. Any CephX user holding mon allow r capabilities can read the entire config-key store, which contains sensitive operational secrets including OSD LUKS disk encryption passphrases and, on clusters managed by cephadm, the SSH private key used to administer every host. Exposure of these secrets can lead to full host-level root access and compromise of encrypted data at rest.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Advisories
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References
History
Thu, 20 Aug 2026 02:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Ceph
Ceph ceph |
|
| Vendors & Products |
Ceph
Ceph ceph |
Thu, 20 Aug 2026 00:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in the MON subscription handler of Ceph, a distributed storage system. The handler does not properly authorize access to the config-key store when processing MMonSubscribe messages. Any CephX user holding mon allow r capabilities can read the entire config-key store, which contains sensitive operational secrets including OSD LUKS disk encryption passphrases and, on clusters managed by cephadm, the SSH private key used to administer every host. Exposure of these secrets can lead to full host-level root access and compromise of encrypted data at rest. | |
| Title | ceph: ceph: MON subscription handler exposes config-key store to low-privilege CephX users | |
| Weaknesses | CWE-862 | |
| References |
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| Metrics |
threat_severity
|
cvssV3_1
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OpenCVE Enrichment
Updated: 2026-08-20T01:45:03Z
Weaknesses