Medium 5.4Published Oct 9, 2026

CVE-2026-107854Jexactyl: Free-billing order endpoint renews and unsuspends arbitrary servers by ID (missing ownership check)

Updated under an hour ago (2026-10-19 07:30 UTC)

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Every CVE for Jexactyl

Exploited in the last 30 days

Jexactyl is a customisable game management panel and billing system. From 4.0.0 until 4.0.5, the POST /api/client/billing/free/process endpoint accepts a client-controlled server_id and loads the server without restricting the lookup to servers owned by the authenticated account. On installations with billing enabled, an authenticated user can renew or unsuspend another tenant's billable server when its renewal_date is non-null and more than seven days away, even without a subuser relationship to that server. This issue is fixed in version 4.0.5.

CVSS: 5.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Weakness (CWE): CWE-639
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 13, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Jexactyl Jexactyl jexactyl:jexactyl (from the name)	from 4.0.0, < 4.0.5	CNA record

References

https://github.com/Jexactyl/Jexactyl/security/advisories/GHSA-9xwv-p7r5-5h5px-refsource-confirm
https://github.com/Jexactyl/Jexactyl/commit/356a5b46a18d483ae90c862e130b1969e6df0777x-refsource-misc
https://github.com/Jexactyl/Jexactyl/releases/tag/v4.0.5x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.