CVE-2026-41163— bubblewrap vulnerable to privilege escalation in setuid mode via ptrace
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I. Basic Information for CVE-2026-41163
Vulnerability Information
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Vulnerability Title
bubblewrap vulnerable to privilege escalation in setuid mode via ptrace
Source: NVD (National Vulnerability Database)
Vulnerability Description
bubblewrap is a low-level unprivileged sandboxing tool. From version 0.11.0 to before version 0.11.2, if bubblewrap is installed in setuid mode then the user can use ptrace to attach to bubblewrap and control the unprivileged part of the sandbox setup phase. This allows the attacker to arbitrarily use the privileged operations, and in particular the "overlay mount" operation, allowing the creation of overlay mounts which is otherwise not allowed in the setuid version of bubblewrap. This issue has been patched in version 0.11.2.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
特权管理不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Bubblewrap 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Bubblewrap是Containers开源的一套非特权沙盒工具。 bubblewrap 0.11.0版本至0.11.2之前版本存在安全漏洞，该漏洞源于在setuid模式下用户可使用ptrace附加到bubblewrap并控制沙箱设置阶段的非特权部分，可能导致攻击者任意使用特权操作，特别是覆盖挂载操作。
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 |
|---|---|---|---|---|
| containers | bubblewrap | >= 0.11.0, < 0.11.2 | - |
II. Public POCs for CVE-2026-41163
| # | POC Description | Source Link | Shenlong Link |
|---|
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- Release Release 0.11.2 · containers/bubblewrap · GitHubx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-41163
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