Is there a public exploit for CVE-2026-126329?

No public exploit for CVE-2026-126329 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-126329?

CVE-2026-126329 scores CVSS 7.3 (v4.0), rated high.

What does CVE-2026-126329 affect?

CVE-2026-126329 affects Docker Docker Sandboxes.

7.3 High

Docker Sandboxes reuses existing state and configuration directories without verifying their ownership.

CVE-2026-126329

Docker Sandboxes reuses existing state and configuration directories without verifying their ownership. If sbx or sandboxd is run as root with HOME or, on Linux, XDGSTATEHOME pointing to an attacker-controlled location, a local unprivileged user can substitute control-plane sockets and configuration trusted by the root process, potentially executing commands as root. Exploitation requires a privileged invocation with an attacker-influenced environment. The issue affects Linux and macOS and is fixed in version 0.53.0.

Assessment

CVSS: 7.3 (v4.0)
Severity: High
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 12 November 2026
Last updated: 12 November 2026
Affected: Docker · Docker Sandboxes
Assigner: Docker

CVSS vectorCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

At the source

EUVD (ENISA)

References

https://docs.docker.com/ai/sandboxes/

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