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3 vulnerabilities by sharpcompress_project

CVE-2026-44788 (GCVE-0-2026-44788)

Vulnerability from cvelistv5 – Published: 2026-05-26 21:32 – Updated: 2026-05-27 12:46
VLAI
Title
SharpCompress: Directory traversal via directory entries in WriteToDirectory (zip slip variant)
Summary
SharpCompress is a fully managed C# library to deal with many compression types and formats. In 0.47.4 and earlier, a path traversal vulnerability in IArchive.WriteToDirectory() allows a malicious archive to create directories outside the intended extraction root. For TAR archives, this can be escalated to arbitrary file writes by chaining with a symlink entry, giving a full write primitive on the target filesystem subject to the permissions of the running process.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:L
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
adamhathcock sharpcompress Affected: <= 0.47.4
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CVE-2021-39208 (GCVE-0-2021-39208)

Vulnerability from cvelistv5 – Published: 2021-09-16 14:35 – Updated: 2024-08-04 01:58
VLAI
Title
WriteEntryToDirectory used for an archive extraction is vulnerable to partial path traversal.
Summary
SharpCompress is a fully managed C# library to deal with many compression types and formats. Versions prior to 0.29.0 are vulnerable to partial path traversal. SharpCompress recreates a hierarchy of directories under destinationDirectory if ExtractFullPath is set to true in options. In order to prevent extraction outside the destination directory the destinationFileName path is verified to begin with fullDestinationDirectoryPath. However, prior to version 0.29.0, it is not enforced that fullDestinationDirectoryPath ends with slash. If the destinationDirectory is not slash terminated like `/home/user/dir` it is possible to create a file with a name thats begins as the destination directory one level up from the directory, i.e. `/home/user/dir.sh`. Because of the file name and destination directory constraints the arbitrary file creation impact is limited and depends on the use case. This issue is fixed in SharpCompress version 0.29.0.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
adamhathcock sharpcompress Affected: < 0.29.0
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Show details on NVD website
To clipboard 

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CVE-2018-1002206 (GCVE-0-2018-1002206)

Vulnerability from cvelistv5 – Published: 2018-07-25 17:00 – Updated: 2024-09-17 03:29
VLAI
Summary
SharpCompress before 0.21.0 is vulnerable to directory traversal, allowing attackers to write to arbitrary files via a ../ (dot dot slash) in a Zip archive entry that is mishandled during extraction. This vulnerability is also known as 'Zip-Slip'.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
SharpCompress SharpCompress Affected: unspecified , < 0.21.0 (custom)
Create a notification for this product.
Show details on NVD website
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