Vulnerability · NVD

CVE-2021-28861

HIGH 7.4 Vendor bulletin scale — NVD CVSS pending Published on 2022-08-23

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."

Attack vector : Network No privileges required

Show raw CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

EPSS 2.03% above median percentile 79.2%

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

Python 3.12 Windows winget:Python.Python.3.12

Affected — Fixed in — Latest tracked 3.12.10 undetermined

Vulnerable CPE configurations (14)

Vendor	Product	Platform	Versions	CPE 2.3 URI
python	python All platforms (wildcard)	All platforms (wildcard)	≥3.0.0 <3.7.14	cpe:2.3:a:python:python::::::::
python	python All platforms (wildcard)	All platforms (wildcard)	≥3.8.0 <3.8.14	cpe:2.3:a:python:python::::::::
python	python All platforms (wildcard)	All platforms (wildcard)	≥3.9.0 <3.9.14	cpe:2.3:a:python:python::::::::
python	python All platforms (wildcard)	All platforms (wildcard)	≥3.10.0 <3.10.6	cpe:2.3:a:python:python::::::::
python	python All platforms (wildcard)	All platforms (wildcard)	—	cpe:2.3:a:python:python:3.11.0:alpha1::::::
python	python All platforms (wildcard)	All platforms (wildcard)	—	cpe:2.3:a:python:python:3.11.0:alpha2::::::
python	python All platforms (wildcard)	All platforms (wildcard)	—	cpe:2.3:a:python:python:3.11.0:alpha3::::::
python	python All platforms (wildcard)	All platforms (wildcard)	—	cpe:2.3:a:python:python:3.11.0:alpha4::::::
python	python All platforms (wildcard)	All platforms (wildcard)	—	cpe:2.3:a:python:python:3.11.0:alpha5::::::
python	python All platforms (wildcard)	All platforms (wildcard)	—	cpe:2.3:a:python:python:3.11.0:alpha6::::::
python	python All platforms (wildcard)	All platforms (wildcard)	—	cpe:2.3:a:python:python:3.11.0:alpha7::::::
python	python All platforms (wildcard)	All platforms (wildcard)	—	cpe:2.3:a:python:python:3.11.0:beta1::::::
python	python All platforms (wildcard)	All platforms (wildcard)	—	cpe:2.3:a:python:python:3.11.0:beta2::::::
python	python All platforms (wildcard)	All platforms (wildcard)	—	cpe:2.3:a:python:python:3.11.0:beta3::::::

View on NVD ↗ Advisory · bugs.python.org Advisory · github.com