CVE-2026-44722

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{"affected": [{"affectedData": [{"product": "pyzipper", "vendor": "danifus", "versions": [{"status": "affected", "version": "< 0.4.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "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."}, {"lang": "es", "value": "pyzipper es un reemplazo para el m\u00f3dulo zipfile de Python que puede leer y escribir archivos zip cifrados con AES. Antes de la versi\u00f3n 0.4.0, un error de precedencia de operadores de Python en pyzipper/zipfile_aes.py hizo que el formato AE-2 nunca se seleccionara autom\u00e1ticamente durante el cifrado, lo que provoc\u00f3 que las entradas cifradas se escribieran en formato AE-1 y exponiendo la suma de verificaci\u00f3n CRC32 en texto plano en la cabecera ZIP y, para archivos zip no buscables, en la secci\u00f3n del descriptor de datos, permitiendo a un atacante que posee el archivo forzar por fuerza bruta posibles textos planos para archivos peque\u00f1os o de baja entrop\u00eda comparando los valores CRC32. Este problema est\u00e1 corregido en la versi\u00f3n 0.4.0."}], "id": "CVE-2026-44722", "lastModified": "2026-10-24T20:10:00.137", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.5, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-44722", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-17T17:25:00.965188Z", "version": "2.0.3"}}]}, "published": "2026-07-17T17:17:15.240", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/danifus/pyzipper/commit/93ce88e7dfd1635443197dab3fb8d477cff579ae"}, {"source": "security-advisories@github.com", "url": "https://github.com/danifus/pyzipper/releases/tag/v0.4.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/danifus/pyzipper/security/advisories/GHSA-crqm-m339-7m2p"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-480"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.4.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "pyzipper", "source": "cna", "vendor": "danifus"}, "product": "pyzipper", "vendor": "danifus"}], "created": "2026-07-22T02:30:13.449005+00:00", "updated": "2026-07-31T00:15:05.744334+00:00", "vendors": ["danifus", "danifus$PRODUCT$pyzipper"]}