{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-53940",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-11T15:46:12.318Z",
        "datePublished": "2026-09-21T15:35:37.770Z",
        "dateUpdated": "2026-09-21T18:47:14.680Z"
    },
    "containers": {
        "cna": {
            "title": "Conda: Entry-point path traversal in noarch:python install (arbitrary file write) — canonical Python implementation",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-22",
                            "lang": "en",
                            "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-73",
                            "lang": "en",
                            "description": "CWE-73: External Control of File Name or Path",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 8.8,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/conda/conda/security/advisories/GHSA-9m8m-c4j3-rj2c",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/conda/conda/security/advisories/GHSA-9m8m-c4j3-rj2c"
                },
                {
                    "name": "https://github.com/conda/conda/pull/16168",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/conda/conda/pull/16168"
                },
                {
                    "name": "https://github.com/conda/conda/commit/3987c86ccd5527177e96b48bd4dc1777dd2c9baa",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/conda/conda/commit/3987c86ccd5527177e96b48bd4dc1777dd2c9baa"
                },
                {
                    "name": "https://github.com/conda/conda/releases/tag/26.5.2",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/conda/conda/releases/tag/26.5.2"
                }
            ],
            "affected": [
                {
                    "vendor": "conda",
                    "product": "conda",
                    "versions": [
                        {
                            "version": "< 26.5.2",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-09-21T15:35:37.770Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Conda is a system-level binary package and environment manager that runs on major operating systems and platforms. Prior to 26.5.2, parse_entry_point_def in conda/common/path/python.py accepted an unvalidated entry-point command from a noarch:python package's info/link.json metadata. CreatePythonEntryPointAction in conda/core/path_actions.py interpolated that command into target_short_path, and PrefixPathAction.target_full_path joined it to the installation prefix without verifying that the result remained under the intended bin or Scripts directory. create_python_entry_point in conda/gateways/disk/create.py then wrote an executable wrapper to the resulting path. A malicious package could use path separators, traversal segments, or an absolute command path to write outside the prefix or overwrite another in-prefix entry point during default install and environment transactions. Out-of-prefix writes require the target parent directory to exist, while an overwritten entry point can execute attacker-controlled Python when later invoked with the installing user's privileges. This issue is fixed in version 26.5.2."
                }
            ],
            "source": {
                "advisory": "GHSA-9m8m-c4j3-rj2c",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/conda/conda/security/advisories/GHSA-9m8m-c4j3-rj2c",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-09-21T18:46:47.887956Z",
                                "id": "CVE-2026-53940",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "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": "2026-09-21T18:47:14.680Z"
                }
            }
        ]
    }
}