How many CVEs have patched _reduce_uri_with_scheme?

1 published CVEs changed _reduce_uri_with_scheme in python/cpython, in 5 distinct patches totalling 11 changed lines, between 2026 and 2026.

What is the latest CVE that changed _reduce_uri_with_scheme?

CVE-2026-15806 (`HTTPPasswordMgr` can send saved HTTPS credentials via HTTP because of incorrect scheme matching), published 2026-08-18, changed lines 880 to 890 of Lib/urllib/request.py.

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

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

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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python/cpython

Function

_reduce_uri_with_scheme

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

Lib/urllib/request.py

Last patched August 18, 2026

1

CVEs

That changed this function

5

Distinct patches

Backports counted once

11

Lines changed

Added plus removed

2026

Years

By CVE publication date

Overview

_reduce_uri_with_scheme in python/cpython was changed by 1 published CVE fixes in 2026, in 5 distinct patches that added or removed 11 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 _reduce_uri_with_scheme, newest first, with the lines each fix touched.

`HTTPPasswordMgr` can send saved HTTPS credentials via HTTP because of incorrect scheme matching
CVE-2026-15806 · lines 880–890 · +11 −0
Medium · CVSS 6.0
EPSS 0.5%2026-08-18

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Other functions in these files

Functions in the same file that CVE fixes also changed.

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 _reduce_uri_with_scheme.

How many CVEs have patched _reduce_uri_with_scheme?: 1 published CVEs changed _reduce_uri_with_scheme in python/cpython, in 5 distinct patches totalling 11 changed lines, between 2026 and 2026.
What is the latest CVE that changed _reduce_uri_with_scheme?: CVE-2026-15806 (`HTTPPasswordMgr` can send saved HTTPS credentials via HTTP because of incorrect scheme matching), published 2026-08-18, changed lines 880 to 890 of Lib/urllib/request.py.
How does _reduce_uri_with_scheme compare to the rest of python/cpython?: python/cpython has 118 CVEs with a located fix in total; 1 of them changed _reduce_uri_with_scheme.
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

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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