{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-82393",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-08-28T22:00:43.511Z",
        "datePublished": "2026-08-31T21:12:09.196Z",
        "dateUpdated": "2026-09-02T03:55:39.345Z"
    },
    "containers": {
        "cna": {
            "title": "pnpm: A tarball dependency's manifest `name` escapes node_modules → arbitrary file write/overwrite on install",
            "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"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-94",
                            "lang": "en",
                            "description": "CWE-94: Improper Control of Generation of Code ('Code Injection')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 7.5,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/pnpm/pnpm/security/advisories/GHSA-vq4v-j7r6-jq4m",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/pnpm/pnpm/security/advisories/GHSA-vq4v-j7r6-jq4m"
                },
                {
                    "name": "https://github.com/pnpm/pnpm/pull/12872",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/pnpm/pnpm/pull/12872"
                },
                {
                    "name": "https://github.com/pnpm/pnpm/pull/12890",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/pnpm/pnpm/pull/12890"
                },
                {
                    "name": "https://github.com/pnpm/pnpm/commit/51300fd41c5e4c8f47635108e373cc3d1f324fa7",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/pnpm/pnpm/commit/51300fd41c5e4c8f47635108e373cc3d1f324fa7"
                },
                {
                    "name": "https://github.com/pnpm/pnpm/commit/78e29fe5583a1e5d69ea05e414eff310f78d5ed9",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/pnpm/pnpm/commit/78e29fe5583a1e5d69ea05e414eff310f78d5ed9"
                },
                {
                    "name": "https://github.com/pnpm/pnpm/releases/tag/v10.34.5",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/pnpm/pnpm/releases/tag/v10.34.5"
                },
                {
                    "name": "https://github.com/pnpm/pnpm/releases/tag/v11.11.0",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/pnpm/pnpm/releases/tag/v11.11.0"
                }
            ],
            "affected": [
                {
                    "vendor": "pnpm",
                    "product": "pnpm",
                    "versions": [
                        {
                            "version": "< 10.34.5",
                            "status": "affected"
                        },
                        {
                            "version": ">= 11.0.0, < 11.11.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-08-31T21:12:09.196Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "pnpm is a package manager. Prior to 10.34.5 and 11.11.0, pnpm accepts a scoped path traversal in a tarball dependency's package.json manifest name because pnpm11/resolving/npm-resolver/src/pickPackage.ts rejects slash characters only for unscoped names. During pnpm install, the unvalidated name reaches raw path joins in pnpm11/installing/deps-resolver/src/resolvePeers.ts, pnpm11/installing/deps-resolver/src/index.ts, and pnpm11/deps/graph-builder/src/lockfileToDepGraph.ts, causing package extraction outside node_modules and allowing attacker-controlled files to overwrite arbitrary filesystem paths even when --ignore-scripts is used. The overwrite can replace shell startup files, Git hooks, or installed package code and lead to code execution. This issue is fixed in versions 10.34.5, and 11.11.0."
                }
            ],
            "source": {
                "advisory": "GHSA-vq4v-j7r6-jq4m",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/pnpm/pnpm/security/advisories/GHSA-vq4v-j7r6-jq4m",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-09-01T00:00:00+00:00",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3",
                                "id": "CVE-2026-82393"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-09-02T03:55:39.345Z"
                }
            }
        ]
    }
}