CVE-2021-36213

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    CVE-2021-36213

    Published: 17 Jul 2021Last Modified: 8 Jul 2026

    Summary:

    Details: HashiCorp Consul and Consul Enterprise 1.9.0 through 1.10.0 default deny policy with a single L7 application-aware intention deny action cancels out, causing the intention to incorrectly fail open, allowing L4 traffic. Fixed in 1.9.8 and 1.10.1.

    References: https://discuss.hashicorp.com/t/hcsec-2021-16-consul-s-application-aware-intentions-deny-action-fails-open-when-combined-with-default-deny-policy/26855, https://github.com/hashicorp/consul/releases/tag/v1.10.1, https://security.gentoo.org/glsa/202208-09, https://www.hashicorp.com/blog/category/consul

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- a417fe51040a33039d3282e31c6c6b6f4fd1f886
    Fixed -debb13e91861642efe80f19440ab6fecf4b93be8

    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
    CVE-2021-36213 | CVE-DB