CVE-2026-3351— Authorization Bypass in LXD GET /1.0/certificates Endpoint
Quick assessment
Affected
Canonical lxd
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.
LXD是Canonical开源的一款基于Linux系统用于管理应用程序的容器。 LXD 6.6版本存在安全漏洞，该漏洞源于API端点GET /1.0/certificates存在授权不当，可能导致经过身份验证的受限用户枚举lxd服务器信任的所有证书指纹。
Possible ATT&CK Techniques 1 AI
T1083 · File and Directory Discovery
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I. Basic Information for CVE-2026-3351
Vulnerability Information
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Vulnerability Title
Authorization Bypass in LXD GET /1.0/certificates Endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
Improper authorization in the API endpoint GET /1.0/certificates in Canonical LXD 6.6 on Linux allows an authenticated, restricted user to enumerate all certificate fingerprints trusted by the lxd server.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:P
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
LXD 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LXD是Canonical开源的一款基于Linux系统用于管理应用程序的容器。 LXD 6.6版本存在安全漏洞，该漏洞源于API端点GET /1.0/certificates存在授权不当，可能导致经过身份验证的受限用户枚举lxd服务器信任的所有证书指纹。
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
II. Public POCs for CVE-2026-3351
| # | POC Description | Source Link | Shenlong Link |
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Patches & Fixes for CVE-2026-3351 (2)
Vendor Advisories for CVE-2026-3351 (1)
IV. Related Vulnerabilities
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V. Comments for CVE-2026-3351
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