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CVE-2024-6162

Undertow: url-encoded request path information can be broken on ajp-listener

7.5 HighFix available

A vulnerability was found in Undertow, where URL-encoded request paths can be mishandled during concurrent requests on the AJP listener. This issue arises because the same buffer is used to decode the paths for multiple requests simultaneously, leading to incorrect path information being processed. As a result, the server may attempt to access the wrong path, causing errors such as "404 Not Found" or other application failures. This flaw can potentially lead to a denial of service, as legitimate resources become inaccessible due to the path mix-up.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

1.70%Up 1.7 points since Jun 21, 2024
90%50%10%1%

What each source reports

CVE List Score used 7.5

Undertow: url-encoded request path information can be broken on ajp-listener

A vulnerability was found in Undertow, where URL-encoded request paths can be mishandled during concurrent requests on the AJP listener. This issue arises because the same buffer is used to decode the paths for multiple requests simultaneously, leading to incorrect path information being processed. As a result, the server may attempt to access the wrong path, causing errors such as "404 Not Found" or other application failures. This flaw can potentially lead to a denial of service, as legitimate resources become inaccessible due to the path mix-up.

Record
CVE-2024-6162
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-488
Updated
2026-11-02
EUVDEUVD-2024-1991 7.5

A vulnerability was found in Undertow, where URL-encoded request paths can be mishandled during concurrent requests on the AJP listener. This issue arises because the same buffer is used to decode the paths for multiple requests simultaneously, leading to incorrect path information being processed. As a result, the server may attempt to access the wrong path, causing errors such as "404 Not Found" or other application failures. This flaw can potentially lead to a denial of service, as legitimate resources become inaccessible due to the path mix-up.

Record
EUVD-2024-1991
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-9442-gm4v-r222 8.7

Undertow's url-encoded request path information can be broken on ajp-listener

A vulnerability was found in Undertow, where URL-encoded request paths can be mishandled during concurrent requests on the AJP listener. This issue arises because the same buffer is used to decode the paths for multiple requests simultaneously, leading to incorrect path information being processed. As a result, the server may attempt to access the wrong path, causing errors such as "404 Not Found" or other application failures. This flaw can potentially lead to a denial of service, as legitimate resources become inaccessible due to the path mix-up.

Record
GHSA-9442-gm4v-r222
CVSS 4.0
8.7 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-400, CWE-488
Updated
2026-11-02
NVD 7.5

A vulnerability was found in Undertow, where URL-encoded request paths can be mishandled during concurrent requests on the AJP listener. This issue arises because the same buffer is used to decode the paths for multiple requests simultaneously, leading to incorrect path information being processed. As a result, the server may attempt to access the wrong path, causing errors such as "404 Not Found" or other application failures. This flaw can potentially lead to a denial of service, as legitimate resources become inaccessible due to the path mix-up.

Record
CVE-2024-6162
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-488
Updated
2026-11-02
OSV 7.5

Undertow: url-encoded request path information can be broken on ajp-listener

A vulnerability was found in Undertow, where URL-encoded request paths can be mishandled during concurrent requests on the AJP listener. This issue arises because the same buffer is used to decode the paths for multiple requests simultaneously, leading to incorrect path information being processed. As a result, the server may attempt to access the wrong path, causing errors such as "404 Not Found" or other application failures. This flaw can potentially lead to a denial of service, as legitimate resources become inaccessible due to the path mix-up.

Record
CVE-2024-6162
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-488
Updated
2026-11-02
OSVDEBIAN-CVE-2024-6162 7.5

A vulnerability was found in Undertow, where URL-encoded request paths can be mishandled during concurrent requests on the AJP listener. This issue arises because the same buffer is used to decode the paths for multiple requests simultaneously, leading to incorrect path information being processed. As a result, the server may attempt to access the wrong path, causing errors such as "404 Not Found" or other application failures. This flaw can potentially lead to a denial of service, as legitimate resources become inaccessible due to the path mix-up.

Record
DEBIAN-CVE-2024-6162
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 6 moreShow less
OSVGHSA-9442-gm4v-r222 8.7

Undertow's url-encoded request path information can be broken on ajp-listener

A vulnerability was found in Undertow, where URL-encoded request paths can be mishandled during concurrent requests on the AJP listener. This issue arises because the same buffer is used to decode the paths for multiple requests simultaneously, leading to incorrect path information being processed. As a result, the server may attempt to access the wrong path, causing errors such as "404 Not Found" or other application failures. This flaw can potentially lead to a denial of service, as legitimate resources become inaccessible due to the path mix-up.

Record
GHSA-9442-gm4v-r222
CVSS 4.0
8.7 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-400, CWE-488
Updated
2026-11-02
OSVUBUNTU-CVE-2024-6162 7.5

A vulnerability was found in Undertow, where URL-encoded request paths can be mishandled during concurrent requests on the AJP listener. This issue arises because the same buffer is used to decode the paths for multiple requests simultaneously, leading to incorrect path information being processed. As a result, the server may attempt to access the wrong path, causing errors such as "404 Not Found" or other application failures. This flaw can potentially lead to a denial of service, as legitimate resources become inaccessible due to the path mix-up.

Record
UBUNTU-CVE-2024-6162
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVCLSA-2025-1766016491 No score

TuxCare security update for io.undertow:undertow-core (4 CVEs)

TuxCare rebuilt io.undertow:undertow-core to address 4 CVEs. Fixed in 2.3.10.Final-tuxcare.1.

Record
CLSA-2025-1766016491
Updated
2026-11-02
OSVCLSA-2026-1780966317 No score

TuxCare security update for io.undertow:undertow-core (4 CVEs)

TuxCare rebuilt io.undertow:undertow-core to address 4 CVEs. Fixed in 2.3.0.Final-tuxcare.1.

Record
CLSA-2026-1780966317
Updated
2026-11-02
OSVCLSA-2026-1787137111 No score

TuxCare security update for io.undertow:undertow-core (6 CVEs)

TuxCare rebuilt io.undertow:undertow-core to address 6 CVEs. Fixed in 2.2.24.Final-tuxcare.1.

Record
CLSA-2026-1787137111
Updated
2026-11-02
OSVCLSA-2026-1793853308 No score

TuxCare security update for io.undertow:undertow-core (6 CVEs)

TuxCare rebuilt io.undertow:undertow-core to address 6 CVEs. Fixed in 1.4.27.Final-tuxcare.3.

Record
CLSA-2026-1793853308
Updated
2026-11-05

Affected products

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Affected packages

Affected packages
PackageAffectedFixed
io.undertow:undertow-core
Maven
2.3.0.Alpha1 up to 2.3.14.Final
2.3.14.Final
io.undertow:undertow-core
Maven
before 2.2.33.Final
2.2.33.Final
io.undertow:undertow-core
TuxCare:Maven
From an advisory covering 4 CVEs
2.3.10.Final up to 2.3.10.Final-tuxcare.1
2.3.10.Final-tuxcare.1
io.undertow:undertow-core
TuxCare:Maven
From an advisory covering 4 CVEs
2.3.0.Final up to 2.3.0.Final-tuxcare.1
2.3.0.Final-tuxcare.1
io.undertow:undertow-core
TuxCare:Maven
From an advisory covering 6 CVEs
2.2.24.Final up to 2.2.24.Final-tuxcare.1
2.2.24.Final-tuxcare.1
io.undertow:undertow-core
TuxCare:Maven
From an advisory covering 6 CVEs
1.4.27.Final up to 1.4.27.Final-tuxcare.3, plus listed versions
1.4.27.Final-tuxcare.11.4.27.Final-tuxcare.2
1.4.27.Final-tuxcare.3
undertow
Debian:14
before 2.3.18-1, plus listed versions
1.3.11-11.3.16-11.3.19-11.3.21-11.3.23-1
Show 45 moreShow less
1.3.4-11.3.5-11.3.7-11.4.0-11.4.1-11.4.18-11.4.20-11.4.21-11.4.21-21.4.22-11.4.23-11.4.23-21.4.23-31.4.25-11.4.25-21.4.3-11.4.4-11.4.6-11.4.7-11.4.8-12.0.23-12.0.25-12.0.26-12.0.27-12.0.28-12.0.29-12.0.30-12.1.0-12.1.1-12.1.3-12.2.0-12.2.10-12.2.12-12.2.13-12.2.14-12.2.16-12.2.17-12.2.18-12.2.19-12.2.2-12.2.20-12.2.21-12.2.3-12.2.4-12.2.5-1
2.3.18-1
io.undertow:undertow-core
Maven
2.3.0.Alpha1 up to 2.3.14.Final, plus listed versions
2.3.0.Alpha22.3.0.Beta12.3.0.Final2.3.1.Final2.3.10.Final
Show 11 moreShow less
2.3.11.Final2.3.12.Final2.3.13.Final2.3.2.Final2.3.3.Final2.3.4.Final2.3.5.Final2.3.6.Final2.3.7.Final2.3.8.Final2.3.9.Final
2.3.14.Final
io.undertow:undertow-core
Maven
before 2.2.33.Final, plus listed versions
1.0.0.Alpha11.0.0.Alpha101.0.0.Alpha111.0.0.Alpha121.0.0.Alpha13
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1.0.0.Alpha141.0.0.Alpha151.0.0.Alpha161.0.0.Alpha171.0.0.Alpha181.0.0.Alpha191.0.0.Alpha21.0.0.Alpha201.0.0.Alpha211.0.0.Alpha221.0.0.Alpha31.0.0.Alpha41.0.0.Alpha51.0.0.Alpha61.0.0.Alpha71.0.0.Alpha81.0.0.Alpha91.0.0.Beta11.0.0.Beta101.0.0.Beta111.0.0.Beta121.0.0.Beta131.0.0.Beta141.0.0.Beta151.0.0.Beta161.0.0.Beta171.0.0.Beta181.0.0.Beta191.0.0.Beta21.0.0.Beta201.0.0.Beta211.0.0.Beta221.0.0.Beta231.0.0.Beta241.0.0.Beta251.0.0.Beta261.0.0.Beta271.0.0.Beta281.0.0.Beta291.0.0.Beta31.0.0.Beta301.0.0.Beta311.0.0.Beta321.0.0.Beta331.0.0.Beta4
2.2.33.Final
undertow
Ubuntu:Pro:16.04:LTS
All versions, plus listed versions
1.3.4-11.3.5-11.3.7-11.3.11-11.3.16-11.3.16-1ubuntu0.1~esm1
None known
Show 7 moreShow less
Affected packages
PackageAffectedFixed
undertow
Ubuntu:Pro:18.04:LTS
All versions, plus listed versions
1.4.20-11.4.21-11.4.22-11.4.23-11.4.23-2build11.4.23-31.4.23-3ubuntu0.1~esm1
None known
undertow
Ubuntu:Pro:20.04:LTS
All versions, plus listed versions
2.0.23-12.0.27-12.0.28-12.0.29-12.0.29-1ubuntu0.1~esm1
None known
undertow
Ubuntu:Pro:22.04:LTS
All versions, plus listed versions
2.2.8-12.2.12-12.2.13-12.2.14-12.2.16-12.2.16-1ubuntu0.1~esm1
None known
undertow
Ubuntu:Pro:24.04:LTS
All versions, plus listed versions
2.3.8-22.3.8-2ubuntu0.1~esm1
None known
undertow
Ubuntu:25.10
All versions, plus listed versions
2.3.18-12.3.18-2
None known
undertow
Ubuntu:26.10
All versions, plus listed versions
2.3.20-1ubuntu1
None known
undertow
Ubuntu:26.04:LTS
All versions, plus listed versions
2.3.18-22.3.20-12.3.20-1ubuntu1
None known

History

History
RecordedChangedSources
affected
affected, aliases, factsOSV
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-6162 is a high vulnerability (CVSS 7.5) in Red Hat Eap 8.0.1, published June 20, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.70%, the 77th percentile. Fixed in io.undertow:undertow-core 2.3.14.Final.

References

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Left out here: 254 versions. The JSON record has them.

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