CVE-2026-94490

Description

A security flaw has been discovered in OctoPrint 1.0.0. Affected by this issue is the function executeSystemCommand of the file src/octoprint/server/api/system.py of the component Command API. Performing a manipulation of the argument command results in os command injection. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Overview

State: PUBLISHED
Assigner (CNA): VulDB
CVSS severity: MEDIUM
CVSS score: 5.1 / 10
CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Effective score: 5.1 / 10 MEDIUM source: CNA overview
CWE(s): CWE-78, CWE-77
Reserved: 2026-09-21
Published: 2026-09-22 00:00 UTC
Last updated: 2026-09-22 00:00 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/94xxx/CVE-2026-94490.json

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-09-22 00:16:32 UTC
NVD last modified: 2026-09-22 00:16:32 UTC
NVD CVSS v3.1: 4.7 / 10 MEDIUM source: cna@vuldb.com
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Exploitability subscore: 1.2 / 10
Impact subscore: 3.4 / 10

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-84249
Assigner: VulDB
Published: Sep 22, 2026, 12:00:15 AM
Updated: Sep 22, 2026, 12:00:15 AM
EUVD base score (CVSS 4.0): 5.1 / 10
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
EUVD-reported EPSS: 0.0000
Vendors: n/a
Products: OctoPrint (1.0.0)
Aliases: GHSA-jwf4-wmgv-pvqx

ENISA description: A security flaw has been discovered in OctoPrint 1.0.0. Affected by this issue is the function executeSystemCommand of the file src/octoprint/server/api/system.py of the component Command API. Performing a manipulation of the argument command results in os command injection. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

EUVD references (4)

Affected products (1)

Vendor	Product	Versions	Platforms
n/a	OctoPrint	`1.0.0` (affected)	—

Vendor references (4)

References embedded in the original CVE record by the assigning CNA.

VDB-408190 | OctoPrint Command API system.py executeSystemCommand os command injection vdb-entrytechnical-description
VDB-408190 | CTI Indicators (IOB, IOC, TTP, IOA) signaturepermissions-required
CVE-2026-94490 | CVE Analysis and Report third-party-advisory
Submit #895339 | OctoPrint (https://octoprint.org/) OctoPrint Foundation 1.0.0 OS Command Injection (CWE-78), Path Traversal (CWE-22) third-party-advisory

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (4)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://vuldb.com/cve/CVE-2026-94490 cna@vuldb.com
https://vuldb.com/submit/895339 cna@vuldb.com
https://vuldb.com/vuln/408190 cna@vuldb.com
https://vuldb.com/vuln/408190/cti cna@vuldb.com

Remediations (10)

Identify and remediate vulnerabilities for CVE-2026-19490

web:docs.netscaler.com

Remediate CVE - 2026 -19490 For CVE - 2026 -19490 impacted NetScaler instances, the remediation is a single-step process and you need to upgrade the vulnerable NetScaler instances to a release and build that has the fix . In the GUI, under CVE Detection > Impacted Instances, select the instances and click Proceed to upgrade workflow.

2026-09-22 21:59 UTC
Security Update Guide - Microsoft

web:msrc.microsoft.com

The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

2026-09-22 21:59 UTC
CVE-2026-19490 (CVSS 9.3): NetScaler Auth Bypass

web:securityonline.info

CVE - 2026 -19490 (CVSS 9.3) is a critical NetScaler authentication bypass in NetScaler Gateway and ADC. Patch now to block unauthenticated access.

2026-09-22 21:59 UTC
Microsoft Patch Tracker (September 2026): Exploit-Ranked | Senserva

web:senserva.com

Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.

2026-09-22 21:59 UTC
CVE-2026-19490: NetScaler Auth Bypass Patched

web:socradar.io

What Is CVE - 2026 -19490? CVE - 2026 -19490 is an authentication bypass vulnerability in NetScaler ADC and NetScaler Gateway. Cloud Software Group classifies it as CWE-288: Authentication Bypass Using an Alternate Path and assigns it a CVSS v4.0 score of 9.3.

2026-09-22 21:59 UTC
NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026 ...

web:support.citrix.com

NetScaler ADC and NetScaler Gateway Security Bulletin for CVE - 2026 -19489 and CVE - 2026 -19490 The information on this page is being provided to you on an "AS IS" and "AS-AVAILABLE" basis. The issues described on this page may or may not impact your system (s). Cloud Software Group, Inc. and its subsidiaries (collectively, "Cloud SG") make no representations, warranties, or guarantees as to the ...

2026-09-22 21:59 UTC
March 10, 2026—Hotpatch KB5079420 (OS Builds 26200.7979 and 26100.7979 ...

web:support.microsoft.com

This Hotpatch update for Windows 11, version 25H2 and 24H2 (KB5079420), improves functionality, performance, and reliability. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different types of ...

2026-09-22 21:59 UTC
Critical Citrix NetScaler auth bypass now leveraged in attacks

web:www.bleepingcomputer.com

Attackers have begun targeting a critical-severity Citrix NetScaler auth bypass flaw ( CVE - 2026 -19490) in the wild, according to vulnerability intelligence company Previdian.

2026-09-22 21:59 UTC
Citrix urges customers to fix critical NetScaler authentication bypass ...

web:www.helpnetsecurity.com

Citrix patched two vulnerabilities in NetScaler ADC and Gateway, including a critical bypass flaw, CVE - 2026 -19490.

2026-09-22 21:59 UTC
CVE-2026-94490: n/a OctoPrint: A security flaw has been ... - Rapid7

web:www.rapid7.com

CVE-2026-94490 : n/a OctoPrint: A security flaw has been discovered in OctoPrint 1.0.0. View severity, references, and remediation details from Rapid7.

2026-09-22 21:59 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-94490.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:octoprint:octoprint:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "Command API"
          ],
          "product": "OctoPrint",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "1.0.0"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "EagleShadow (VulDB User)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "VulDB CNA Team"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A security flaw has been discovered in OctoPrint 1.0.0. Affected by this issue is the function executeSystemCommand of the file src/octoprint/server/api/system.py of the component Command API. Performing a manipulation of the argument command results in os command injection. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 5.1,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 5.8,
            "vectorString": "AV:N/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:ND/RC:UR",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-78",
              "description": "OS Command Injection",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-77",
              "description": "Command Injection",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-22T00:00:15.361Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-408190 | OctoPrint Command API system.py executeSystemCommand os command injection",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/408190"
        },
        {
          "name": "VDB-408190 | CTI Indicators (IOB, IOC, TTP, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/408190/cti"
        },
        {
          "name": "CVE-2026-94490 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-94490"
        },
        {
          "name": "Submit #895339 | OctoPrint (https://octoprint.org/) OctoPrint Foundation 1.0.0  OS Command Injection (CWE-78), Path Traversal (CWE-22)",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/895339"
        }
      ],
      "timeline": [
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          "lang": "en",
          "time": "2026-09-21T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-09-21T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-09-21T19:50:28.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "OctoPrint Command API system.py executeSystemCommand os command injection",
      "x_generator": [
        "VulDB PVTS v202609"
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-94490",
    "datePublished": "2026-09-22T00:00:15.361Z",
    "dateReserved": "2026-09-21T17:45:19.608Z",
    "dateUpdated": "2026-09-22T00:00:15.361Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}