How many CVEs have patched parse_qs?

1 published CVEs changed parse_qs in python/cpython, in 1 distinct patches totalling 7 changed lines, between 2021 and 2021.

What is the latest CVE that changed parse_qs?

CVE-2021-23336 (Web Cache Poisoning), published 2021-02-15, changed lines 665 to 697 of Lib/urllib/parse.py.

How does parse_qs compare to the rest of python/cpython?

python/cpython has 118 CVEs with a located fix in total; 1 of them changed parse_qs.

What do the line numbers refer to?

Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

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Parse_qs

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Patched Functions
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Parse_qs

parse_qs in python/cpython: Patched by 1 CVEs

python/cpython

Function

parse_qs

Name: parse_qs in python/cpython: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

Lib/urllib/parse.py

Last patched February 15, 2021

CVEs

That changed this function

Distinct patches

Backports counted once

Lines changed

Added plus removed

2021

Years

By CVE publication date

Overview

parse_qs in python/cpython was changed by 1 published CVE fixes in 2021, in 1 distinct patches that added or removed 7 lines in total.

python/cpython has 118 CVEs with a located fix in total, so 1% of them touched this function.

CVEs that patched it

Every published CVE whose fix changed parse_qs, newest first, with the lines each fix touched.

On this page

Overview
CVEs that patched it
Other functions in these files
Other hotspots in the repository
FAQ
References

Web Cache Poisoning
CVE-2021-23336 · lines 665–697 · +5 −2 in 2 hunks
Medium · CVSS 5.9
EPSS 40.7%2021-02-15

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Other functions in these files

Functions in the same file that CVE fixes also changed.

1urlsplitLib/urllib/parse.py4 CVEs · 17 patches2019 to 2025
2_checknetlocLib/urllib/parse.py2 CVEs · 7 patches2019
3_check_bracketed_hostLib/urllib/parse.py1 CVEs · 5 patches2024
4_check_bracketed_netlocLib/urllib/parse.py1 CVEs · 5 patches2025
5_urlsplitLib/urllib/parse.py1 CVEs · 2 patches2025
6parse_qslLib/urllib/parse.py1 CVEs · 1 patches2021

Other hotspots in the repository

Functions in python/cpython changed by the most CVE fixes.

makelink_with_filter9 CVEs · Lib/tarfile.py _get_filtered_attrs7 CVEs · Lib/tarfile.py extract6 CVEs · Lib/tarfile.py _get_sep5 CVEs · Lib/posixpath.py _readlink_deep5 CVEs · Lib/ntpath.py _get_bothseps5 CVEs · Lib/ntpath.py

All patched functions in python/cpython

Frequently asked questions

Common questions about CVE fixes to parse_qs.

How many CVEs have patched parse_qs?: 1 published CVEs changed parse_qs in python/cpython, in 1 distinct patches totalling 7 changed lines, between 2021 and 2021.
What is the latest CVE that changed parse_qs?: CVE-2021-23336 (Web Cache Poisoning), published 2021-02-15, changed lines 665 to 697 of Lib/urllib/parse.py.
How does parse_qs compare to the rest of python/cpython?: python/cpython has 118 CVEs with a located fix in total; 1 of them changed parse_qs.
What do the line numbers refer to?: Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

References

Lib/urllib/parse.py on GitHub (opens in a new tab)
All patched functions in python/cpython
Patched functions directory

Fix locations are computed by RadicalNotion.AI from the upstream patch diff of each CVE. CVE data is sourced from the CVE Program.

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