{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-55094",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-16T14:41:54.578Z",
        "datePublished": "2026-09-30T17:22:52.135Z",
        "dateUpdated": "2026-09-30T19:12:22.456Z"
    },
    "containers": {
        "cna": {
            "title": "Taskcluster: Unauthenticated remote code execution in `web-server` via GraphQL `filter` argument (sift `$where`)",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-20",
                            "lang": "en",
                            "description": "CWE-20: Improper Input Validation",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-94",
                            "lang": "en",
                            "description": "CWE-94: Improper Control of Generation of Code ('Code Injection')",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-95",
                            "lang": "en",
                            "description": "CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-250",
                            "lang": "en",
                            "description": "CWE-250: Execution with Unnecessary Privileges",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-306",
                            "lang": "en",
                            "description": "CWE-306: Missing Authentication for Critical Function",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 8.7,
                        "baseSeverity": "HIGH",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/taskcluster/taskcluster/security/advisories/GHSA-ccv5-c45x-2q38",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/taskcluster/taskcluster/security/advisories/GHSA-ccv5-c45x-2q38"
                },
                {
                    "name": "https://github.com/taskcluster/taskcluster/issues/8716",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/taskcluster/taskcluster/issues/8716"
                },
                {
                    "name": "https://github.com/taskcluster/taskcluster/pull/8718",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/taskcluster/taskcluster/pull/8718"
                },
                {
                    "name": "https://github.com/taskcluster/taskcluster/commit/a1b0154b8235937657c2ded127f193b564e2334b",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/taskcluster/taskcluster/commit/a1b0154b8235937657c2ded127f193b564e2334b"
                },
                {
                    "name": "https://bugzilla.mozilla.org/show_bug.cgi?id=2045091",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2045091"
                },
                {
                    "name": "https://github.com/taskcluster/taskcluster/releases/tag/v100.3.0",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/taskcluster/taskcluster/releases/tag/v100.3.0"
                }
            ],
            "affected": [
                {
                    "vendor": "taskcluster",
                    "product": "taskcluster",
                    "versions": [
                        {
                            "version": "< 100.3.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-09-30T17:22:52.135Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Taskcluster is the task execution framework that supports Mozilla's continuous integration and release processes. Prior to version 100.3.0, Taskcluster is vulnerable to unauthenticated RCE on Taskcluster deployments with an anonymous role that exposes the GraphQL endpoint and parses filter arguments using the sift library. This issue has been patched in version 100.3.0."
                }
            ],
            "source": {
                "advisory": "GHSA-ccv5-c45x-2q38",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-09-30T19:12:04.595464Z",
                                "id": "CVE-2026-55094",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-09-30T19:12:22.456Z"
                }
            }
        ]
    }
}