CWE-436

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      "datePublic": "2026-10-21T00:00:00.000Z",
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          "value": "adm-zip through 0.6.1 contains a duplicate-entry validation bypass that allows attackers to evade the readEntries() check by using canonically equivalent entry names like \u0027./hello.txt\u0027 and \u0027hello.txt\u0027. Attackers can craft ZIP archives where getEntry() or readAsText() validates benign content while extractAllTo() writes malicious content to the same path, bypassing integrity checks."
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          "name": "GitHub Issue #587",
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          "url": "https://github.com/cthackers/adm-zip/issues/587"
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          "tags": [
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          "url": "https://github.com/cthackers/adm-zip/blob/cb2cf9ba4c7c865db426e2de1997cb41194d9872/zipFile.js#L81-L92"
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        {
          "lang": "en",
          "value": "zip is a zip library for Rust that supports reading and writing simple ZIP files. Through 9.0.4, ZipArchive treats Central Directory File Header filenames as authoritative while ZipStreamReader extracts using Local File Header filenames without reconciling the duplicate metadata in src/read/stream.rs. A crafted archive can therefore appear benign to a component that inspects the central directory but cause a streaming extractor to write a different attacker-selected path and content, potentially overwriting files used by a downstream service. This issue is fixed in version 9.0.5."
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          "name": "https://github.com/zip-rs/zip2/security/advisories/GHSA-m665-v7pm-7grj",
          "tags": [
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          ],
          "url": "https://github.com/zip-rs/zip2/security/advisories/GHSA-m665-v7pm-7grj"
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      "title": "zip: Critical Parser Differential \u0026 Security Control Bypass via Dual-Header Inconsistencies (Zip Cloaking) Leading to Arbitrary File Overwrite \u0026 RCE"
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          "packageURL": "pkg:hex/hackney",
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      "dateAssigned": "2026-10-26T10:12:09.000Z",
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