CVE-2026-54583 : 詳細

CVE-2026-54583

2026-09-17
17h16 +00:00
Directory Traversal
A01-Broken Access ControlA04-Insecure Design
2026-09-17
21h15 +00:00
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CVE の説明

mport is the MidnightBSD Package Manager. Prior to 2.7.8, libmport/fetch.c did not consistently reject empty, dot, dot-dot, or slash-containing bundle filenames before composing package download and write paths. Malicious package index data could place an unsafe value in indexEntry->bundlefile, and the missing is_valid_bundle_filename() checks allowed downloaded package data to be written outside the intended cache location or to an unsafe destination name. This issue is fixed in version 2.7.8.

CVE の情報

関連する弱点

CWE-ID 弱点名 出典
CWE-22 Improper Limitation of a Pathname to a Restricted Directory
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
CWE-73 External Control of File Name or Path
The product allows user input to control or influence paths or file names that are used in filesystem operations.

参考資料