CVE-2026-86114

    Dashboard / Vulnerabilities / CVE-2026-86114

    CVE-2026-86114

    Published: 5 Sept 2026Last Modified: 25 Sept 2026

    Summary: Arcane before 2.0.0 Missing Administrator Authorization on the Compose Template Mutation Endpoints

    Details: Arcane versions before 2.0.0 fail to properly restrict template operations, allowing default user role accounts to create, modify, and delete compose templates including instance-wide defaults. Attackers can inject malicious container configurations with privileged settings or host path mounts that execute with administrative privileges when deployed by administrators.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86114.json, https://github.com/getarcaneapp/arcane/releases/tag/v2.0.0, https://nvd.nist.gov/vuln/detail/CVE-2026-86114, https://www.vulncheck.com/advisories/arcane-before-2.0.0-missing-administrator-authorization-on-the-compose-template-mutation-endpoints, https://github.com/getarcaneapp/arcane/commit/1500646aa91f, https://github.com/getarcaneapp/arcane, https://github.com/geo-chen/oss/blob/main/arcane.md, https://github.com/getarcaneapp/arcane/blob/v1.19.5/backend/api/handlers/templates.go

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 02829b270b7975df32c8d5f787db7345dc6c27ac
    Fixed -2fb3931f6215b3e04f52432336665b8b68dfc990

    Affected versions

    v1.20.0

    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-2026-86114 | CVE-DB