Vulnerability-Lookup

CVE-2026-86118 (GCVE-0-2026-86118)

Vulnerability from cvelistv5 – Published: 2026-09-05 09:59 – Updated: 2026-09-08 13:06

Title

gonic before 0.22.0 Missing Administrator Check on the Subsonic startScan Endpoint

Summary

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.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 13:06 UTC

CWE

CWE-862 - Missing Authorization

Assigner

VulnCheck mitre root

References

6 references

URL	Tags
https://github.com/sentriz/gonic/security/advisor…	vendor-advisory
https://github.com/sentriz/gonic/blob/v0.21.0/ser…	technical-description
https://github.com/sentriz/gonic/blob/v0.21.0/ser…	technical-description
https://github.com/sentriz/gonic/releases/tag/v0.22.0	release-notes
https://github.com/sentriz/gonic	product
https://www.vulncheck.com/advisories/gonic-before…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
sentriz	gonic	Affected: 0 , < 0.22.0 (semver)	guessed

Date Public

2026-07-13 00:00

Credits

George Chen

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-86118

Vulnerability from fkie_nvd - Published: 2026-09-05 10:16 - Updated: 2026-09-08 14:17

Severity

4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://github.com/sentriz/gonic
	disclosure@vulncheck.com	https://github.com/sentriz/gonic/blob/v0.21.0/server/ctrlsubsonic/ctrl.go
	disclosure@vulncheck.com	https://github.com/sentriz/gonic/blob/v0.21.0/server/ctrlsubsonic/handlers_common.go
	disclosure@vulncheck.com	https://github.com/sentriz/gonic/releases/tag/v0.22.0
	disclosure@vulncheck.com	https://github.com/sentriz/gonic/security/advisories/GHSA-453r-pgfw-h3pq
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/gonic-before-0.22.0-missing-administrator-check-on-the-subsonic-startscan-endpoint
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/sentriz/gonic/security/advisories/GHSA-453r-pgfw-h3pq

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/sentriz/gonic/blob/v0.21.0/server/ctrlsubsonic/ctrl.go"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/sentriz/gonic/blob/v0.21.0/server/ctrlsubsonic/handlers_common.go"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/sentriz/gonic/releases/tag/v0.22.0"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/sentriz/gonic/security/advisories/GHSA-453r-pgfw-h3pq"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.vulncheck.com/advisories/gonic-before-0.22.0-missing-administrator-check-on-the-subsonic-startscan-endpoint"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/sentriz/gonic/security/advisories/GHSA-453r-pgfw-h3pq"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-58W8-8F5R-987P

Vulnerability from github – Published: 2026-09-05 12:31 – Updated: 2026-09-05 12:31

Details

Severity

4.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

5.3 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-86118"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-05T10:16:43Z",
    "severity": "MODERATE"
  },
  "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.",
  "id": "GHSA-58w8-8f5r-987p",
  "modified": "2026-09-05T12:31:26Z",
  "published": "2026-09-05T12:31:26Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/sentriz/gonic/security/advisories/GHSA-453r-pgfw-h3pq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86118"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sentriz/gonic"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sentriz/gonic/blob/v0.21.0/server/ctrlsubsonic/ctrl.go"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sentriz/gonic/blob/v0.21.0/server/ctrlsubsonic/handlers_common.go"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sentriz/gonic/releases/tag/v0.22.0"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/gonic-before-0.22.0-missing-administrator-check-on-the-subsonic-startscan-endpoint"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-86118 (GCVE-0-2026-86118)

FKIE_CVE-2026-86118

GHSA-58W8-8F5R-987P

Tags

Sightings

Nomenclature