CVE-2026-44788 — SharpCompress: Directory traversal via directory entries in WriteToDirectory (zip slip variant)
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()…
Published: 2026-05-26 · CVSS: 5.9 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7