CVE-2026-87107

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    CVE-2026-87107

    Published: 10 Sept 2026Last Modified: 11 Sept 2026

    Summary: Consul vulnerable to an authorization bypass in the catalog deregistration path

    Details: Consul and Consul Enterprise are vulnerable to an authorization bypass in the catalog deregistration path that may allow a local ACL token to delete peer-imported catalog objects. A caller with {{service:write}} or {{node:write}} permission may exploit this issue to remove services, checks, or nodes imported from a peered cluster without holding authority over the peer origin. This vulnerability (CVE-2026-87107) is fixed in Consul 2.0.4 and Consul Enterprise 1.21.18, 1.22.12 and 2.0.4.

    References: https://discuss.hashicorp.com/t/hcsec-2026-36-consul-vulnerable-to-an-authorization-bypass-in-the-catalog-deregistration-path/77738, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/87xxx/CVE-2026-87107.json, https://github.com/hashicorp/consul, https://nvd.nist.gov/vuln/detail/CVE-2026-87107

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 4e96098f98228a6b91691abefced6493128d57ea
    Fixed -a3eb721c21d4c1ff4baabf84da60158f374f8907

    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-2026-87107 | CVE-DB