GO-2021-0061

    Dashboard / Vulnerabilities / GO-2021-0061

    GO-2021-0061

    Published: 14 Apr 2021Last Modified: 4 Feb 2026

    Summary: Denial of service in gopkg.in/yaml.v2

    Details: Due to unbounded alias chasing, a maliciously crafted YAML file can cause the system to consume significant system resources. If parsing user input, this may be used as a denial of service vector.

    References: https://github.com/go-yaml/yaml/pull/375, https://github.com/go-yaml/yaml/commit/bb4e33bf68bf89cad44d386192cbed201f35b241

    Affected packages

    Package

    Name: gopkg.in/yaml.v2

    Purl: pkg:golang/gopkg.in/yaml.v2

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -2.2.3

    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-2021-0061 | CVE-DB