How many CVEs have patched start?

1 published CVEs changed start in aio-libs/aiohttp, in 1 distinct patches totalling 12 changed lines, between 2026 and 2026.

What is the latest CVE that changed start?

CVE-2026-54273 (AIOHTTP: HTTP/1 Pipelined Requests Queue Without Limit), published 2026-06-22, changed lines 636 to 647 of aiohttp/web_protocol.py.

How does start compare to the rest of aio-libs/aiohttp?

aio-libs/aiohttp has 42 CVEs with a located fix in total; 1 of them changed start.

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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Weaknesses (CWE)The MITRE CWE weakness catalog
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Start

start in aio-libs/aiohttp: Patched by 1 CVEs

aio-libs/aiohttp

Function

start

Name: start in aio-libs/aiohttp: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

aiohttp/web_protocol.py

Last patched June 22, 2026

CVEs

That changed this function

Distinct patches

Backports counted once

Lines changed

Added plus removed

2026

Years

By CVE publication date

Overview

start in aio-libs/aiohttp was changed by 1 published CVE fixes in 2026, in 1 distinct patches that added or removed 12 lines in total.

aio-libs/aiohttp has 42 CVEs with a located fix in total, so 2% of them touched this function.

CVEs that patched it

Every published CVE whose fix changed start, 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

AIOHTTP: HTTP/1 Pipelined Requests Queue Without Limit
CVE-2026-54273 · lines 636–647 · +12 −0
Medium · CVSS 6.6
EPSS 0.5%2026-06-22

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Other functions in these files

Functions in the same file that CVE fixes also changed.

1__init__aiohttp/web_protocol.py3 CVEs · 3 patches2026
2data_receivedaiohttp/web_protocol.py1 CVEs · 1 patches2026
3_reading_paused_for_msg_queueaiohttp/web_protocol.py1 CVEs · 1 patches2026

Other hotspots in the repository

Functions in aio-libs/aiohttp changed by the most CVE fixes.

parse_headers8 CVEs · aiohttp/http_parser.py feed_data7 CVEs · aiohttp/http_parser.py get_content_length6 CVEs · aiohttp/http_parser.py __init__5 CVEs · aiohttp/http_parser.py parse_message4 CVEs · aiohttp/http_parser.py post4 CVEs · aiohttp/web_request.py

All patched functions in aio-libs/aiohttp

Frequently asked questions

Common questions about CVE fixes to start.

How many CVEs have patched start?: 1 published CVEs changed start in aio-libs/aiohttp, in 1 distinct patches totalling 12 changed lines, between 2026 and 2026.
What is the latest CVE that changed start?: CVE-2026-54273 (AIOHTTP: HTTP/1 Pipelined Requests Queue Without Limit), published 2026-06-22, changed lines 636 to 647 of aiohttp/web_protocol.py.
How does start compare to the rest of aio-libs/aiohttp?: aio-libs/aiohttp has 42 CVEs with a located fix in total; 1 of them changed start.
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

aiohttp/web_protocol.py on GitHub (opens in a new tab)
All patched functions in aio-libs/aiohttp
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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