How many CVEs have patched write?

2 published CVEs changed write in aio-libs/aiohttp, in 2 distinct patches totalling 13 changed lines, between 2024 and 2026.

What is the latest CVE that changed write?

CVE-2025-69223 (AIOHTTP's HTTP Parser auto_decompress feature is vulnerable to zip bomb), published 2026-01-05, changed lines 598 to 1044 of aiohttp/multipart.py.

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

aio-libs/aiohttp has 42 CVEs with a located fix in total; 2 of them changed write.

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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Write

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Weaknesses (CWE)The MITRE CWE weakness catalog
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Patched Functions
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Write

write in aio-libs/aiohttp: Patched by 2 CVEs

aio-libs/aiohttp

Function

write

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

aiohttp/multipart.py

Last patched January 5, 2026

CVEs

That changed this function

Distinct patches

Backports counted once

Lines changed

Added plus removed

2024–2026

Years

By CVE publication date

Overview

write in aio-libs/aiohttp was changed by 2 published CVE fixes between 2024 and 2026, in 2 distinct patches that added or removed 13 lines in total.

aio-libs/aiohttp has 42 CVEs with a located fix in total, so 5% of them touched this function.

CVEs that patched it

Every published CVE whose fix changed write, 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's HTTP Parser auto_decompress feature is vulnerable to zip bomb
CVE-2025-69223 · lines 598–1044 · +5 −3 in 2 hunks
High · CVSS 7.5
EPSS 0.6%2026-01-05
Denial of service when trying to parse malformed POST requests in aiohttp
CVE-2024-30251 · lines 931–935 · +5 −0
High · CVSS 7.5
EPSS 1.1%2024-05-02

Get an alert when the next CVE fix lands in aio-libs/aiohttp, with the patched functions.

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Other functions in these files

Functions in the same file that CVE fixes also changed.

1__init__aiohttp/multipart.py3 CVEs · 3 patches2024 to 2026
2decodeaiohttp/multipart.py2 CVEs · 2 patches2024 to 2026
3_read_headersaiohttp/multipart.py2 CVEs · 2 patches2025 to 2026
4append_payloadaiohttp/multipart.py1 CVEs · 2 patches2024
5get_charsetaiohttp/multipart.py1 CVEs · 1 patches2024
6_get_part_readeraiohttp/multipart.py1 CVEs · 1 patches2026
7_get_boundaryaiohttp/multipart.py1 CVEs · 1 patches2024
8keysaiohttp/multipart.py1 CVEs · 1 patches2024

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 write.

How many CVEs have patched write?: 2 published CVEs changed write in aio-libs/aiohttp, in 2 distinct patches totalling 13 changed lines, between 2024 and 2026.
What is the latest CVE that changed write?: CVE-2025-69223 (AIOHTTP's HTTP Parser auto_decompress feature is vulnerable to zip bomb), published 2026-01-05, changed lines 598 to 1044 of aiohttp/multipart.py.
How does write compare to the rest of aio-libs/aiohttp?: aio-libs/aiohttp has 42 CVEs with a located fix in total; 2 of them changed write.
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/multipart.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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