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Relative path traversal in zip:unzip/zip:extract via check_dir_level depth-counter bypass

cve-program · CVE-2026-47078

Published

otp

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "cpes": [
                        "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
                    ],
                    "defaultStatus": "unaffected",
                    "modules": [
                        "zip"
                    ],
                    "packageName": "otp",
                    "packageURL": "pkg:software-id/erlang.org/otp",
                    "product": "OTP",
                    "programFiles": [
                        "lib/stdlib/src/zip.erl"
                    ],
                    "programRoutines": [
                        {
                            "name": "zip:unzip/1"
                        },
                        {
                            "name": "zip:unzip/2"
                        },
                        {
                            "name": "zip:extract/1"
                        },
                        {
                            "name": "zip:extract/2"
                        },
                        {
                            "name": "zip:check_dir_level/2"
                        }
                    ],
                    "vendor": "Erlang",
                    "versions": [
                        {
                            "changes": [
                                {
                                    "at": "27.3.4.15",
                                    "status": "unaffected"
                                },
                                {
                                    "at": "28.5.0.4",
                                    "status": "unaffected"
                                },
                                {
                                    "at": "29.0.4",
                                    "status": "unaffected"
                                }
                            ],
                            "lessThan": "*",
                            "status": "affected",
                            "version": "27.1",
                            "versionType": "otp"
                        }
                    ]
                }

stdlib

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "cpes": [
                        "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
                    ],
                    "defaultStatus": "unaffected",
                    "modules": [
                        "zip"
                    ],
                    "packageName": "stdlib",
                    "packageURL": "pkg:otp/stdlib?repository_url=https:%2F%2Fgithub.com%2Ferlang%2Fotp&vcs_url=git%2Bhttps:%2F%2Fgithub.com%2Ferlang%2Fotp.git",
                    "product": "OTP",
                    "programFiles": [
                        "src/zip.erl"
                    ],
                    "programRoutines": [
                        {
                            "name": "zip:unzip/1"
                        },
                        {
                            "name": "zip:unzip/2"
                        },
                        {
                            "name": "zip:extract/1"
                        },
                        {
                            "name": "zip:extract/2"
                        },
                        {
                            "name": "zip:check_dir_level/2"
                        }
                    ],
                    "repo": "https://github.com/erlang/otp",
                    "vendor": "Erlang",
                    "versions": [
                        {
                            "changes": [
                                {
                                    "at": "6.2.2.4",
                                    "status": "unaffected"
                                },
                                {
                                    "at": "7.3.0.1",
                                    "status": "unaffected"
                                },
                                {
                                    "at": "8.0.3",
                                    "status": "unaffected"
                                }
                            ],
                            "lessThan": "*",
                            "status": "affected",
                            "version": "6.1",
                            "versionType": "otp"
                        }
                    ]
                }

erlang/otp

https://github.com

Original vendor version evidence · not evaluated as a NuGet range
{
                    "collectionURL": "https://github.com",
                    "cpes": [
                        "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
                    ],
                    "defaultStatus": "unaffected",
                    "modules": [
                        "zip"
                    ],
                    "packageName": "erlang/otp",
                    "packageURL": "pkg:github/erlang/otp",
                    "product": "OTP",
                    "programFiles": [
                        "lib/stdlib/src/zip.erl"
                    ],
                    "programRoutines": [
                        {
                            "name": "zip:unzip/1"
                        },
                        {
                            "name": "zip:unzip/2"
                        },
                        {
                            "name": "zip:extract/1"
                        },
                        {
                            "name": "zip:extract/2"
                        },
                        {
                            "name": "zip:check_dir_level/2"
                        }
                    ],
                    "repo": "https://github.com/erlang/otp",
                    "vendor": "Erlang",
                    "versions": [
                        {
                            "lessThan": "8a933c9c7835b06776d31d17b79b7336627d887a",
                            "status": "affected",
                            "version": "8d537f51a4262d24f3395c4148323eaca9facbbd",
                            "versionType": "git"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

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