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CVE-2026-41163— bubblewrap vulnerable to privilege escalation in setuid mode via ptrace

Quick assessment

Affected
containers bubblewrap
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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。

CVSS 8.7 · High EPSS 0.36% · P27

Affected Version Matrix 1

VendorProduct Version RangeStatus
containers bubblewrap >= 0.11.0, < 0.11.2 affected
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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: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
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
AI-Generated POC Premium
Qwen3.6-35B-A3B · 12502 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-41163

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Vendor Advisories for CVE-2026-41163 (1)

Vendor Pages for CVE-2026-41163 (1)

IV. Related Vulnerabilities

Same product: bubblewrap
Same vendor: containers
Same weakness: CWE-269

V. Comments for CVE-2026-41163

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