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CVE-2026-10720— MicroCeph path traversal issue in the remote-import API

Quick assessment

Affected
Canonical Microceph
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Canonical MicroCeph是英国Canonical公司开源的一个轻量级分布式存储集群管理平台。 Canonical MicroCeph存在路径遍历漏洞，该漏洞源于remote-import API中的路径遍历问题，可能导致持有可信集群mTLS证书或加入令牌的攻击者操纵/var/snap/microceph中的文件，造成守护进程中断和集群状态污染。

AI Predicted 8.1 Difficulty: Moderate EPSS 0.30% · P21

Affected Version Matrix 2

VendorProduct Version RangeStatus
Canonical Microceph 19.2.1+snap74c0060321< 19.2.3+snapcf306793a4 affected
20.0.0< 20.2.0+snapbe4e67380e affected
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I. Basic Information for CVE-2026-10720

Vulnerability Information
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Vulnerability Title
MicroCeph path traversal issue in the remote-import API
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
相对路径遍历
Source: CVE Program / CVE List V5
Vulnerability Title
Canonical MicroCeph 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Canonical MicroCeph是英国Canonical公司开源的一个轻量级分布式存储集群管理平台。 Canonical MicroCeph存在路径遍历漏洞，该漏洞源于remote-import API中的路径遍历问题，可能导致持有可信集群mTLS证书或加入令牌的攻击者操纵/var/snap/microceph中的文件，造成守护进程中断和集群状态污染。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Canonical Microceph 19.2.1+snap74c0060321 ~ 19.2.3+snapcf306793a4 -

II. Public POCs for CVE-2026-10720

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III. Intelligence Information for CVE-2026-10720

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Patches & Fixes for CVE-2026-10720 (1)

IV. Related Vulnerabilities

Same vendor: Canonical
Same weakness: CWE-23

V. Comments for CVE-2026-10720

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