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CWE-55: Path Equivalence: '/./' (Single Dot Directory)

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The product accepts path input in the form of single dot directory exploit ('/./') without appropriate validation, which can lead to ambiguous path resolution and allow an attacker to traverse the file system to unintended locations or access arbitrary files.

What the weakness is: CWE-55 at MITRE. All weaknesses

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Show the promptExplain CWE-55: Path Equivalence: '/./' (Single Dot Directory) and how to prevent and detect it in code. Use https://cwe.mitre.org/data/definitions/55.html and https://cve.bz/cve/cwe/55?via=ask-ai-copy for recent CVEs with this weakness. Cite the sources.

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  1. 5.3CVE-2026-79768EPSS 0.5%

    Path equivalence: '/./' (single dot directory) vulnerability in Apache HTTP Server's mod_userdir module when configured with absolute non-wildcard UserDir directive (the 2nd form in https://httpd.apache.org/docs/2.4/mod/mod_userdir.html#us…