{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-44722",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-05-07T18:04:17.308Z",
        "datePublished": "2026-07-17T16:42:01.472Z",
        "dateUpdated": "2026-07-17T17:25:08.270Z"
    },
    "containers": {
        "cna": {
            "title": "pyzipper: Encryption bypass for small files encrypted with pyzipper",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-480",
                            "lang": "en",
                            "description": "CWE-480: Use of Incorrect Operator",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "LOCAL",
                        "availabilityImpact": "NONE",
                        "baseScore": 6.2,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/danifus/pyzipper/security/advisories/GHSA-crqm-m339-7m2p",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/danifus/pyzipper/security/advisories/GHSA-crqm-m339-7m2p"
                },
                {
                    "name": "https://github.com/danifus/pyzipper/commit/93ce88e7dfd1635443197dab3fb8d477cff579ae",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/danifus/pyzipper/commit/93ce88e7dfd1635443197dab3fb8d477cff579ae"
                },
                {
                    "name": "https://github.com/danifus/pyzipper/releases/tag/v0.4.0",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/danifus/pyzipper/releases/tag/v0.4.0"
                }
            ],
            "affected": [
                {
                    "vendor": "danifus",
                    "product": "pyzipper",
                    "versions": [
                        {
                            "version": "< 0.4.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-07-17T16:42:01.472Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "pyzipper is a replacement for Python's zipfile that can read and write AES encrypted zip files. Prior to 0.4.0, a Python operator precedence bug in pyzipper/zipfile_aes.py caused the AE-2 format to never be automatically selected during encryption, causing encrypted entries to be written in AE-1 format and exposing the plaintext CRC32 checksum in the ZIP header and, for unseekable zip archives, in the datadescripter section, allowing an attacker who possesses the archive to brute-force candidate plaintexts for small or low-entropy files by comparing CRC32 values. This issue is fixed in version 0.4.0."
                }
            ],
            "source": {
                "advisory": "GHSA-crqm-m339-7m2p",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-07-17T17:25:00.965188Z",
                                "id": "CVE-2026-44722",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "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": "2026-07-17T17:25:08.270Z"
                }
            }
        ]
    }
}