GO-2021-0087

    Dashboard / Vulnerabilities / GO-2021-0087

    GO-2021-0087

    Published: 14 Apr 2021Last Modified: 4 Feb 2026

    Summary: Race condition in github.com/opencontainers/runc

    Details: A race while mounting volumes allows a possible symlink-exchange attack, allowing a user whom can start multiple containers with custom volume mount configurations to escape the container.

    References: https://github.com/opencontainers/runc/pull/2207, https://github.com/opencontainers/runc/commit/2fc03cc11c775b7a8b2e48d7ee447cb9bef32ad0, https://github.com/opencontainers/runc/issues/2197

    Affected packages

    Package

    Name: github.com/opencontainers/runc

    Purl: pkg:golang/github.com/opencontainers/runc

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -1.0.0-rc9.0.20200122160610-2fc03cc11c77

    Affected versions

    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
    GO-2021-0087 | CVE-DB