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CVE-2026-6369— Exposed Session Token in canonical-livepatch client snap

Quick assessment

Affected
Canonical canonical-livepatch
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 Livepatch是Canonical开源的一个实现内核热修复更新与补丁管理的系统组件。 Canonical Livepatch 10.15.0之前版本存在安全漏洞，该漏洞源于访问控制不当，可能导致本地非特权用户通过向livepatchd.sock Unix域套接字发送未经身份验证的请求来获取敏感的身份验证令牌。

AI Predicted 7.5 Difficulty: Easy EPSS 0.17% · P6
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I. Basic Information for CVE-2026-6369

Vulnerability Information
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Vulnerability Title
Exposed Session Token in canonical-livepatch client snap
Source: CVE Program / CVE List V5
Vulnerability Description
An improper access control vulnerability in the canonical-livepatch snap client prior to version 10.15.0 allows a local unprivileged user to obtain a sensitive, root-level authentication token by sending an unauthenticated request to the livepatchd.sock Unix domain socket. This vulnerability is exploitable on systems where an administrator has already enabled the Livepatch client with a valid Ubuntu Pro subscription. This token allows an attacker to access Livepatch services using the victim's credentials, as well as potentially cause issues to the Livepatch server.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:L/SA:L
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Canonical Livepatch 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Canonical Livepatch是Canonical开源的一个实现内核热修复更新与补丁管理的系统组件。 Canonical Livepatch 10.15.0之前版本存在安全漏洞，该漏洞源于访问控制不当，可能导致本地非特权用户通过向livepatchd.sock Unix域套接字发送未经身份验证的请求来获取敏感的身份验证令牌。
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 canonical-livepatch 0 ~ 10.15.0 -

II. Public POCs for CVE-2026-6369

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III. Intelligence Information for CVE-2026-6369

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Other References for CVE-2026-6369 (1)

IV. Related Vulnerabilities

Same vendor: Canonical
Same weakness: CWE-306