{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-71492",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-08-06T19:56:23.725Z",
        "datePublished": "2026-08-20T16:13:55.578Z",
        "dateUpdated": "2026-08-20T17:11:10.125Z"
    },
    "containers": {
        "cna": {
            "title": "Banks: Path traversal in `DirectoryPromptRegistry.set()` allows arbitrary file write outside the registry root",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-22",
                            "lang": "en",
                            "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 6,
                        "baseSeverity": "MEDIUM",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/masci/banks/security/advisories/GHSA-x8wg-4xgc-vr54",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/masci/banks/security/advisories/GHSA-x8wg-4xgc-vr54"
                },
                {
                    "name": "https://github.com/masci/banks/pull/77",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/masci/banks/pull/77"
                },
                {
                    "name": "https://github.com/masci/banks/commit/a215f6d779966945c56e0af5abed1ae5916fd9d3",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/masci/banks/commit/a215f6d779966945c56e0af5abed1ae5916fd9d3"
                },
                {
                    "name": "https://github.com/masci/banks/releases/tag/v2.4.5",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/masci/banks/releases/tag/v2.4.5"
                }
            ],
            "affected": [
                {
                    "vendor": "masci",
                    "product": "banks",
                    "versions": [
                        {
                            "version": "< 2.4.5",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-08-20T16:13:55.578Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Banks generates meaningful LLM prompts using a simple template language. Prior to version 2.4.5, DirectoryPromptRegistry.set() in src/banks/registries/directory.py interpolates attacker-controlled Prompt.name and Prompt.version values into a Path without canonicalization or containment validation. Relative traversal such as ../victim/foo and an absolute Prompt.name can escape or discard the configured registry root, while overwrite=True permits replacement of existing target files. The poisoned name is persisted in index.json and reconstructed by _load(), allowing the out-of-root path to survive later registry loads. An application that forwards request data into these fields can therefore write Prompt.raw bytes to attacker-chosen paths writable by the application process. This issue is fixed in version 2.4.5."
                }
            ],
            "source": {
                "advisory": "GHSA-x8wg-4xgc-vr54",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/masci/banks/security/advisories/GHSA-x8wg-4xgc-vr54",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-08-20T17:10:39.955134Z",
                                "id": "CVE-2026-71492",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "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": "2026-08-20T17:11:10.125Z"
                }
            }
        ]
    }
}