CVE-2026-107854 (GCVE-0-2026-107854)
Vulnerability from cvelistv5
Published
2026-10-09 20:31
Modified
2026-10-13 16:01
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Summary
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.
Impacted products
Vendor Product Version
Jexactyl Jexactyl Version: >= 4.0.0, < 4.0.5
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-107854",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-13T16:00:40.189083Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-13T16:01:00.513Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Jexactyl",
          "vendor": "Jexactyl",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 4.0.0, \u003c 4.0.5"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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\u0027s 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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-639",
              "description": "CWE-639: Authorization Bypass Through User-Controlled Key",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-09T20:31:02.541Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/Jexactyl/Jexactyl/security/advisories/GHSA-9xwv-p7r5-5h5p",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/Jexactyl/Jexactyl/security/advisories/GHSA-9xwv-p7r5-5h5p"
        },
        {
          "name": "https://github.com/Jexactyl/Jexactyl/commit/356a5b46a18d483ae90c862e130b1969e6df0777",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Jexactyl/Jexactyl/commit/356a5b46a18d483ae90c862e130b1969e6df0777"
        },
        {
          "name": "https://github.com/Jexactyl/Jexactyl/releases/tag/v4.0.5",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Jexactyl/Jexactyl/releases/tag/v4.0.5"
        }
      ],
      "source": {
        "advisory": "GHSA-9xwv-p7r5-5h5p",
        "discovery": "UNKNOWN"
      },
      "title": "Jexactyl: Free-billing order endpoint renews and unsuspends arbitrary servers by ID (missing ownership check)"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-107854",
    "datePublished": "2026-10-09T20:31:02.541Z",
    "dateReserved": "2026-10-08T22:34:49.292Z",
    "dateUpdated": "2026-10-13T16:01:00.513Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"cna\": {\"title\": \"Jexactyl: Free-billing order endpoint renews and unsuspends arbitrary servers by ID (missing ownership check)\", \"problemTypes\": [{\"descriptions\": [{\"cweId\": \"CWE-639\", \"lang\": \"en\", \"description\": \"CWE-639: Authorization Bypass Through User-Controlled Key\", \"type\": \"CWE\"}]}], \"metrics\": [{\"cvssV3_1\": {\"attackComplexity\": \"LOW\", \"attackVector\": \"NETWORK\", \"availabilityImpact\": \"LOW\", \"baseScore\": 5.4, \"baseSeverity\": \"MEDIUM\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"LOW\", \"privilegesRequired\": \"LOW\", \"scope\": \"UNCHANGED\", \"userInteraction\": \"NONE\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L\", \"version\": \"3.1\"}}], \"references\": [{\"name\": \"https://github.com/Jexactyl/Jexactyl/security/advisories/GHSA-9xwv-p7r5-5h5p\", \"tags\": [\"x_refsource_CONFIRM\"], \"url\": \"https://github.com/Jexactyl/Jexactyl/security/advisories/GHSA-9xwv-p7r5-5h5p\"}, {\"name\": \"https://github.com/Jexactyl/Jexactyl/commit/356a5b46a18d483ae90c862e130b1969e6df0777\", \"tags\": [\"x_refsource_MISC\"], \"url\": \"https://github.com/Jexactyl/Jexactyl/commit/356a5b46a18d483ae90c862e130b1969e6df0777\"}, {\"name\": \"https://github.com/Jexactyl/Jexactyl/releases/tag/v4.0.5\", \"tags\": [\"x_refsource_MISC\"], \"url\": \"https://github.com/Jexactyl/Jexactyl/releases/tag/v4.0.5\"}], \"affected\": [{\"vendor\": \"Jexactyl\", \"product\": \"Jexactyl\", \"versions\": [{\"version\": \"\u003e= 4.0.0, \u003c 4.0.5\", \"status\": \"affected\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-10-09T20:31:02.541Z\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"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\u0027s 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.\"}], \"source\": {\"advisory\": \"GHSA-9xwv-p7r5-5h5p\", \"discovery\": \"UNKNOWN\"}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-107854\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-13T16:00:40.189083Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-13T16:00:56.008Z\"}}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-107854\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"GitHub_M\", \"dateReserved\": \"2026-10-08T22:34:49.292Z\", \"datePublished\": \"2026-10-09T20:31:02.541Z\", \"dateUpdated\": \"2026-10-13T16:01:00.513Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…