# CVE-2026-121614: Docker Sandboxes host Git executes repository-controlled programs

> CVE-2026-121614: Docker Sandboxes host Git executes repository-controlled programs. CVSS 7.1 (CVSS 4.0).

Canonical: https://rewindex.com/cve/CVE-2026-121614
Last updated: 2026-11-03T22:19:46Z

- Published: 2026-11-03 21:54 UTC · Updated: 2026-11-03 22:19 UTC · Assigner: Docker
- CVSS: 7.1 (CVSS 4.0) · Severity: High
- EPSS: 0.13%, 2th percentile (scored 2026-11-04)
- CISA KEV: no
- CWE: CWE-15

## Description

Docker Sandboxes versions 0.31.0 before 0.50.0 do not neutralize repository-controlled Git configuration when running certain host-side Git commands. An attacker who can modify a host repository's Git configuration, for example through a direct-mode sandbox with the repository mounted read-write, can configure core.fsmonitor or another Git setting that invokes an external program. Git can execute the program during a later clone-mode fetch or, starting in version 0.39.0, an sbx kit push initiated by the user. The program runs on the host with the invoking user's permissions, outside the sandbox's microVM isolation. The read-only host repository mount provided to a clone-mode sandbox does not itself allow that sandbox to modify the host repository's Git configuration. The issue is fixed in version 0.50.0.

## Affected vendors and products

- Docker: Docker Sandboxes

## Tracked companies

- [Docker](https://rewindex.com/company/docker.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-121614)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-121614)
- [https://docs.docker.com/ai/sandboxes/](https://docs.docker.com/ai/sandboxes/)
- [https://docs.docker.com/ai/sandboxes/security/isolation/](https://docs.docker.com/ai/sandboxes/security/isolation/)
- [https://github.com/docker/sbx-releases/releases/tag/v0.50.0](https://github.com/docker/sbx-releases/releases/tag/v0.50.0)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-121614 · Markdown: https://rewindex.com/cve/CVE-2026-121614.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-121614 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T10:25:26.612Z