CVE-2026-86118

    Dashboard / Vulnerabilities / CVE-2026-86118

    CVE-2026-86118

    Published: 5 Sept 2026Last Modified: 25 Sept 2026

    Summary: gonic before 0.22.0 Missing Administrator Check on the Subsonic startScan Endpoint

    Details: gonic versions before 0.22.0 fail to validate administrator privileges in the startScan endpoint, allowing any authenticated user to trigger media library rescans. Attackers can repeatedly call the startScan endpoint to force CPU and I/O-intensive filesystem operations, causing denial of service on multi-user instances.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86118.json, https://github.com/sentriz/gonic/releases/tag/v0.22.0, https://github.com/sentriz/gonic/security/advisories/GHSA-453r-pgfw-h3pq, https://nvd.nist.gov/vuln/detail/CVE-2026-86118, https://www.vulncheck.com/advisories/gonic-before-0.22.0-missing-administrator-check-on-the-subsonic-startscan-endpoint, https://github.com/sentriz/gonic, https://github.com/sentriz/gonic/blob/v0.21.0/server/ctrlsubsonic/ctrl.go, https://github.com/sentriz/gonic/blob/v0.21.0/server/ctrlsubsonic/handlers_common.go

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -5ae99e8af550e4d5cbd45a3b430419d32cb54aed

    Affected versions

    v0.21.0

    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-2026-86118 | CVE-DB