How many CVEs have patched data_received?

3 published CVEs changed data_received in tornadoweb/tornado, in 2 distinct patches totalling 9 changed lines, between 2026 and 2026.

What is the latest CVE that changed data_received?

CVE-2026-49855 (tornado AsyncHTTPClient accumulates decompressed chunks without size limit (gzip bomb)), published 2026-07-14, changed lines 744 to 746 of tornado/http1connection.py.

How does data_received compare to the rest of tornadoweb/tornado?

tornadoweb/tornado has 16 CVEs with a located fix in total; 3 of them changed data_received.

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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tornadoweb/tornado

Function

data_received

Name: data_received in tornadoweb/tornado: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

tornado/http1connection.py

Last patched July 14, 2026

3

CVEs

That changed this function

2

Distinct patches

Backports counted once

9

Lines changed

Added plus removed

2026

Years

By CVE publication date

Overview

data_received in tornadoweb/tornado was changed by 3 published CVE fixes in 2026, in 2 distinct patches that added or removed 9 lines in total.

tornadoweb/tornado has 16 CVEs with a located fix in total, so 19% of them touched this function.

CVEs that patched it

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

tornado AsyncHTTPClient accumulates decompressed chunks without size limit (gzip bomb)
CVE-2026-49855 · lines 744–746 · +3 −0
High · CVSS 7.5
EPSS 0.6%2026-07-14
Tornado: Out-of-bounds memory access in C extension
CVE-2026-49854 · lines 744–746 · +3 −0
Medium · CVSS 5.3
EPSS 0.4%2026-07-14
Tornado: Authorization header forwarded across cross-origin redirects in SimpleAsyncHTTPClient
CVE-2026-49853 · lines 744–746 · +3 −0
High · CVSS 7.7
EPSS 0.5%2026-07-14

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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 tornadoweb/tornado changed by the most CVE fixes.

_websocket_mask_python4 CVEs · tornado/util.py parse_body_arguments3 CVEs · tornado/httputil.py parse_multipart_form_data3 CVEs · tornado/httputil.py close3 CVEs · tornado/curl_httpclient.py initialize3 CVEs · tornado/curl_httpclient.py ioctl3 CVEs · tornado/curl_httpclient.py

All patched functions in tornadoweb/tornado

Frequently asked questions

Common questions about CVE fixes to data_received.

How many CVEs have patched data_received?: 3 published CVEs changed data_received in tornadoweb/tornado, in 2 distinct patches totalling 9 changed lines, between 2026 and 2026.
What is the latest CVE that changed data_received?: CVE-2026-49855 (tornado AsyncHTTPClient accumulates decompressed chunks without size limit (gzip bomb)), published 2026-07-14, changed lines 744 to 746 of tornado/http1connection.py.
How does data_received compare to the rest of tornadoweb/tornado?: tornadoweb/tornado has 16 CVEs with a located fix in total; 3 of them changed data_received.
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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