5.1

CVE-2026-10720: canonical microceph Relative Path Traversal

CVSS: 5.1v4.0MediumDeferred
AliasesGHSA-xg3j-c7q4-f9phGO-2026-5755
Published 19-06-2026Last modified 22-06-2026
Open JSON

Vulnerability summary

CVE-2026-10720 is a medium (CVSS 5.1) Relative Path Traversal vulnerability in canonical microceph. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 21.2% of scored vulnerabilities.

Overall risk
20/100
0100
Low · default modelHow is this calculated?
CVSS score
5.1/10
010
Medium · v4.0 (CVE.org)
EPSS score
0.30%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:21483-1

Timeline

  1. 19-06-2026
    PublishedVulnerability first disclosed.
  2. 22-06-2026
    Last modifiedVulnerability information updated.

Description

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 metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.30%

Chance of exploitation in the next 30 days

Percentile

21%

Versus all other CVEs

30-day change

0.00 pp

From 0.30% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.30%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Canonical1 product
  • microceph≥ 19.2.1+snap74c0060321, < 19.2.3+snapcf306793a4 | ≥ 20.0.0, < 20.2.0+snapbe4e67380e
Github.com/canonical/microceph1 product
  • microceph< 0.0.0-20260609072127-5c2760d8fb76

2 vendors · 2 products

References

5 links