CWE-55

Path Equivalence: '/./' (Single Dot Directory)

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.

CVE-2026-79768 (GCVE-0-2026-79768)
Vulnerability from cvelistv5
Published
2026-10-01 16:18
Modified
2026-10-01 20:09
Severity ?
CWE
  • CWE-55 - Path equivalence: '/./' (single dot directory)
Summary
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#userdir) This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
References
Impacted products
Show details on NVD website


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Mitigation ID: MIT-20

Phase: Implementation

Strategy: Input Validation

Description:

  • Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.

No CAPEC attack patterns related to this CWE.

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