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CVE-2021-28861

7.4 high SSVC exploitation: none Modified
NVD · CVE.org

Python 3.x through 3.10 has an open redirection vulnerability in lib/http/server.py due to no protection against multiple (/) at the beginning of URI path which may leads to information disclosure. NOTE: this is disputed by a third party because the http.server.html documentation page states "Warning: http.server is not recommended for production. It only implements basic security checks."

Fix

Patch, vendor advisory and mitigation references on NVD 6

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 7.4 · python, fedoraprojectNVD modified 2026-10-14 12:17

Affected (CPE criteria) 14

  • cpe:2.3:a:python:python:*:*:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:alpha1:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:alpha2:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:alpha3:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:alpha4:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:alpha5:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:alpha6:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:alpha7:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:beta1:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:beta2:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:beta3:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*

References 39