How many CVEs have patched isValidSchemeCharacter?

1 published CVEs changed isValidSchemeCharacter in undertow-io/undertow, in 1 distinct patches totalling 4 changed lines, between 2021 and 2021.

What is the latest CVE that changed isValidSchemeCharacter?

CVE-2021-20220 (HTTP request smuggling in Undertow), published 2021-02-23, changed lines 570 to 573 of core/src/main/java/io/undertow/server/Connectors.java.

How does isValidSchemeCharacter compare to the rest of undertow-io/undertow?

undertow-io/undertow has 22 CVEs with a located fix in total; 1 of them changed isValidSchemeCharacter.

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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Patched Functions
Undertow Io
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IsValidSchemeCharacter

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Patched Functions
Undertow Io
Undertow
IsValidSchemeCharacter

isValidSchemeCharacter in undertow-io/undertow: Patched by 1 CVEs

undertow-io/undertow

Function

isValidSchemeCharacter

Name: isValidSchemeCharacter in undertow-io/undertow: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

core/src/main/java/io/undertow/server/Connectors.java

Last patched February 23, 2021

CVEs

That changed this function

Distinct patches

Backports counted once

Lines changed

Added plus removed

2021

Years

By CVE publication date

Overview

isValidSchemeCharacter in undertow-io/undertow was changed by 1 published CVE fixes in 2021, in 1 distinct patches that added or removed 4 lines in total.

undertow-io/undertow has 22 CVEs with a located fix in total, so 5% of them touched this function.

CVEs that patched it

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

HTTP request smuggling in Undertow
CVE-2021-20220 · lines 570–573 · +4 −0
Medium · CVSS 4.8
EPSS 1.2%2021-02-23

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Other functions in these files

Functions in the same file that CVE fixes also changed.

1setExchangeRequestPathcore/src/main/java/io/undertow/server/Connectors.java2 CVEs · 2 patches2025 to 2026
2verifyTokencore/src/main/java/io/undertow/server/Connectors.java1 CVEs · 3 patches2018

Other hotspots in the repository

Functions in undertow-io/undertow changed by the most CVE fixes.

handleEventWithNoRunningRequest4 CVEs · core/src/main/java/io/undertow/server/protocol/http/HttpReadListener.java encode3 CVEs · core/src/main/java/io/undertow/protocols/http2/HpackEncoder.java parse3 CVEs · core/src/main/java/io/undertow/server/protocol/ajp/AjpRequestParser.java handlePath3 CVEs · core/src/main/java/io/undertow/server/protocol/http/HttpRequestParser.java handleEvent3 CVEs · core/src/main/java/io/undertow/server/protocol/ajp/AjpReadListener.java handleDigestHeader3 CVEs · core/src/main/java/io/undertow/security/impl/DigestAuthenticationMechanism.java

All patched functions in undertow-io/undertow

Frequently asked questions

Common questions about CVE fixes to isValidSchemeCharacter.

How many CVEs have patched isValidSchemeCharacter?: 1 published CVEs changed isValidSchemeCharacter in undertow-io/undertow, in 1 distinct patches totalling 4 changed lines, between 2021 and 2021.
What is the latest CVE that changed isValidSchemeCharacter?: CVE-2021-20220 (HTTP request smuggling in Undertow), published 2021-02-23, changed lines 570 to 573 of core/src/main/java/io/undertow/server/Connectors.java.
How does isValidSchemeCharacter compare to the rest of undertow-io/undertow?: undertow-io/undertow has 22 CVEs with a located fix in total; 1 of them changed isValidSchemeCharacter.
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

core/src/main/java/io/undertow/server/Connectors.java on GitHub (opens in a new tab)
All patched functions in undertow-io/undertow
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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Overview
CVEs that patched it
Other functions in these files
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References