HIGH 7.4 Microsoft

CVE-2021-28861

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."

Microsoft Security Update 2022-Aug: 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."

Affected Products

References

Published: 2022-08-09 · Source: Microsoft · Feed updated: 2026-09-03
This high severity vulnerability with a CVSS score of 7.4 was published on 2022-08-09 via Microsoft. Affected: cm1 python3 3.7.13-3 on CBL Mariner 1.0, cbl2 python3 3.9.19-1 on CBL Mariner 2.0.
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