{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-54134",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-11T21:15:33.870Z",
        "datePublished": "2026-08-21T18:28:15.925Z",
        "dateUpdated": "2026-08-26T17:34:27.359Z"
    },
    "containers": {
        "cna": {
            "title": "OctoPrint: File exfiltration possible via query parameters on upload endpoints",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-73",
                            "lang": "en",
                            "description": "CWE-73: External Control of File Name or Path",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "ADJACENT",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "LOW",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 7,
                        "baseSeverity": "HIGH",
                        "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/OctoPrint/OctoPrint/security/advisories/GHSA-j4h9-pm27-4rfw",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/OctoPrint/OctoPrint/security/advisories/GHSA-j4h9-pm27-4rfw"
                },
                {
                    "name": "https://github.com/OctoPrint/OctoPrint/commit/579148beeb6d6e9b3d41b1cf32309b47218ed380",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/OctoPrint/OctoPrint/commit/579148beeb6d6e9b3d41b1cf32309b47218ed380"
                },
                {
                    "name": "https://github.com/OctoPrint/OctoPrint/commit/8e3348197db867c30a32d13984f0bd0d664be413",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/OctoPrint/OctoPrint/commit/8e3348197db867c30a32d13984f0bd0d664be413"
                },
                {
                    "name": "https://github.com/OctoPrint/OctoPrint/releases/tag/1.11.8",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/OctoPrint/OctoPrint/releases/tag/1.11.8"
                },
                {
                    "name": "https://github.com/OctoPrint/OctoPrint/releases/tag/2.0.0rc3",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/OctoPrint/OctoPrint/releases/tag/2.0.0rc3"
                }
            ],
            "affected": [
                {
                    "vendor": "OctoPrint",
                    "product": "OctoPrint",
                    "versions": [
                        {
                            "version": "< 1.11.8",
                            "status": "affected"
                        },
                        {
                            "version": ">= 2.0.0rc1, < 2.0.0rc3",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-08-21T18:28:15.925Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "OctoPrint provides a web interface for controlling consumer 3D printers. Prior to 1.11.8 and 2.0.0rc3, OctoPrint's custom Tornado upload handler and Flask with Werkzeug parse request parameters differently, allowing an attacker with FILE_UPLOAD permission to inject reserved internal upload fields through query parameters or parser differentials despite the earlier GHSA-m9jh-jf9h-x3h2 fix. The affected endpoints are /api/files/{local|sdcard}, /api/languages, /plugin/backup/restore, and /plugin/pluginmanager/upload_file. An attacker can make OctoPrint treat an arbitrary host file as a temporary upload, move it into a downloadable upload directory, disclose configuration secrets or other readable files, and remove runtime files in a way that can affect a later restart. This issue is fixed in versions 1.11.8 and 2.0.0rc3."
                }
            ],
            "source": {
                "advisory": "GHSA-j4h9-pm27-4rfw",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-08-26T17:33:50.083207Z",
                                "id": "CVE-2026-54134",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-08-26T17:34:27.359Z"
                }
            }
        ]
    }
}