{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-46562",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-05-14T20:42:31.370Z",
        "datePublished": "2026-07-16T16:06:39.148Z",
        "dateUpdated": "2026-07-16T18:02:19.337Z"
    },
    "containers": {
        "cna": {
            "title": "Yamcs: Remote Code Execution via Mission Database algorithm override",
            "problemTypes": [
                {
                    "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-470",
                            "lang": "en",
                            "description": "CWE-470: Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 9.8,
                        "baseSeverity": "CRITICAL",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/yamcs/yamcs/security/advisories/GHSA-vmwp-vh32-rj75",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/yamcs/yamcs/security/advisories/GHSA-vmwp-vh32-rj75"
                },
                {
                    "name": "https://github.com/yamcs/yamcs/commit/3c550348f866af4675d2ba4a51d8d12b7c7c6011",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/yamcs/yamcs/commit/3c550348f866af4675d2ba4a51d8d12b7c7c6011"
                },
                {
                    "name": "https://github.com/yamcs/yamcs/commit/4ff8fda642ea8c3309a4d3f379aa77b763148992",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/yamcs/yamcs/commit/4ff8fda642ea8c3309a4d3f379aa77b763148992"
                },
                {
                    "name": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.7",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.7"
                },
                {
                    "name": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.0",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.0"
                }
            ],
            "affected": [
                {
                    "vendor": "yamcs",
                    "product": "yamcs",
                    "versions": [
                        {
                            "version": "< 5.12.7",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-07-16T16:06:39.148Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Yamcs is a mission control framework. Prior to 5.12.7, the Nashorn ScriptEngine used to evaluate user-supplied JavaScript algorithm text in yamcs-core/src/main/java/org/yamcs/algorithms/ScriptAlgorithmExecutorFactory.java was constructed without a ClassFilter, so a user with the ChangeMissionDatabase privilege could override an algorithm through the MdbOverrideApi.updateAlgorithm endpoint and supply JavaScript that reaches arbitrary Java classes (for example Java.type(\"java.lang.Runtime\").getRuntime().exec(...)) to execute arbitrary OS commands as the Yamcs process; in the default configuration with no security.yaml the built-in guest user has superuser=true, making the issue reachable without authentication. This issue is fixed in versions 5.12.7 and 5.13.0, which disable algorithm editing by default."
                }
            ],
            "source": {
                "advisory": "GHSA-vmwp-vh32-rj75",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/yamcs/yamcs/security/advisories/GHSA-vmwp-vh32-rj75",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-07-16T18:01:46.175576Z",
                                "id": "CVE-2026-46562",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "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": "2026-07-16T18:02:19.337Z"
                }
            }
        ]
    }
}