# CVE-2026-121522: Possible panic from Git source resolver

> CVE-2026-121522: Possible panic from Git source resolver. CVSS 6.7 (CVSS 4.0).

Canonical: https://rewindex.com/cve/CVE-2026-121522
Last updated: 2026-11-03T22:19:46Z

- Published: 2026-11-03 22:09 UTC · Updated: 2026-11-03 22:19 UTC · Assigner: Docker
- CVSS: 6.7 (CVSS 4.0) · Severity: Medium
- EPSS: 0.12%, 2th percentile (scored 2026-11-04)
- CISA KEV: no
- CWE: CWE-476

## Description

In BuildKit versions v0.26.0 through v0.34.1, a specific build definition that resolves metadata for the same Git source reference twice can cause the BuildKit daemon to panic and crash, interrupting builds handled by that daemon. The issue is fixed in v0.34.2.

## Affected vendors and products

- moby: BuildKit

## Tracked companies

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

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-121522)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-121522)
- [https://github.com/moby/buildkit/security/advisories/GHSA-2fqp-xg6f-v7gj](https://github.com/moby/buildkit/security/advisories/GHSA-2fqp-xg6f-v7gj)

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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-2026-121522 · Markdown: https://rewindex.com/cve/CVE-2026-121522.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-121522 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T10:29:54.799Z