CVE-2026-10720

MicroCeph path traversal issue in the remote-import API

CVSS 5.1 MEDIUMEPSS 0.2%CWE-23

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.1EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

19 Jun 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Canonical MicroCeph versions from the squid and tentacle track are vulnerable to a path traversal issue in the remote-import API. Holders of a trusted cluster mTLS certificate (such as enrolled cluster members) or join token can manipulate files in an imported remote cluster within the /var/snap/microceph confinement. This would allow daemon disruption and pollution of the cluster state.

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:H/SA:H

Affected products

Canonical · Microceph

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References

https://github.com/canonical/microceph/pull/758