CVE-2026-10720: Canonical MicroCeph: path traversal issue in the remote-import AP

June 19, 2026

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.

References

github.com/advisories/GHSA-xg3j-c7q4-f9ph
github.com/canonical/microceph/commit/5c2760d8fb765d670e2673d3a537b67eae4b67c6
github.com/canonical/microceph/pull/758
nvd.nist.gov/vuln/detail/CVE-2026-10720

Code Behaviors & Features

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