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I. Basic Information for CVE-2026-30892
Vulnerability Information

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Vulnerability Title
Crun incorrectly parses `crun exec` option `-u`, leading to privilege escalation
Source: NVD (National Vulnerability Database)
Vulnerability Description
crun is an open source OCI Container Runtime fully written in C. In versions 1.19 through 1.26, the `crun exec` option `-u` (`--user`) is incorrectly parsed. The value `1` is interpreted as UID 0 and GID 0 when it should have been UID 1 and GID 0. The process thus runs with higher privileges than expected. Version 1.27 patches the issue.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
特权管理不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
crun 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
crun是Containers开源的一款使用C语言编写的OCI(开放容器倡议)容器运行时库。 crun 1.19至1.26及之前版本存在安全漏洞,该漏洞源于对crun exec选项-u的解析错误,可能导致进程以高于预期的权限运行。
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
VendorProductAffected VersionsCPESubscribe
containerscrun >= 1.19, < 1.27 -
II. Public POCs for CVE-2026-30892
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III. Intelligence Information for CVE-2026-30892
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