CVE-2026-121522

    Dashboard / Vulnerabilities / CVE-2026-121522

    CVE-2026-121522

    Published: 3 Nov 2026Last Modified: 8 Nov 2026

    Summary: Possible panic from Git source resolver

    Details: 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.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/121xxx/CVE-2026-121522.json, https://github.com/moby/buildkit/security/advisories/GHSA-2fqp-xg6f-v7gj, https://nvd.nist.gov/vuln/detail/CVE-2026-121522

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- a8e548fbbd38729bf9bf1a3722edc21fe3383f97
    Fixed -None

    Affected versions

    v0.34.1
    v0.34.0
    v0.34.0-rc2
    v0.34.0-rc1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-121522 | CVE-DB