Symlink Attack

Overview decompress is a package that can be used for extracting archives. Affected versions of this package are vulnerable to Symlink Attack via the fs.link process. An attacker can gain unauthorized access to sensitive files or corrupt file contents by crafting an archive containing a hardlink...

PT-2026-56968

Name of the Vulnerable Software and Affected Versions decompress versions prior to 4.2.2 Description An issue exists during archive extraction where arbitrary hardlink creation is possible. When processing hardlink entries type === 'link', the x.linkname field from the archive is passed directly ...

libarchive: Archive Entry with type 1 (hardlink), but has a non-zero data size file overwrite

A flaw was found in the way libarchive handled hardlink archive entries of non-zero size. Combined with flaws in libarchive's file system sandboxing, this issue could cause an application using libarchive to overwrite arbitrary files with arbitrary data from the archive...