What is CVE-2026-41163?

CVE-2026-41163 is a high-severity vulnerability in Containers Bubblewrap, classified under Improper Privilege Management. CVSS score: 7.0/10. Published 2026-05-09.

How severe is CVE-2026-41163?

High severity. CVSS v3 base score is 7.0 out of 10.

Privilege escalation in Containers Bubblewrap

CVE-2026-41163

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.

Vulnerability class: Privilege Escalation

EPSS: 0.003 (19.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Containers Bubblewrap — versions >= 0.11.0, < 0.11.2

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

https://github.com/containers/bubblewrap/releases/tag/v0.11.2 (x_refsource_MISC)
https://github.com/containers/bubblewrap/security/advisories/GHSA-xq78-7hw4-5jvp (x_refsource_CONFIRM)
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Frequently asked questions

What is CVE-2026-41163?: CVE-2026-41163 is a high-severity vulnerability in Containers Bubblewrap, classified under Improper Privilege Management. CVSS score: 7.0/10. Published 2026-05-09.
How severe is CVE-2026-41163?: High severity. CVSS v3 base score is 7.0 out of 10.