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CVE-2023-27900

Denial of service in Jenkins Core

7.5 HighFix available

Jenkins 2.393 and earlier, LTS 2.375.3 and earlier uses the Apache Commons FileUpload library without specifying limits for the number of request parts introduced in version 1.5 for CVE-2023-24998 in hudson.util.MultipartFormDataParser, allowing attackers to trigger a denial of service.

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

0.98%Up 0.9 points since Mar 9, 2023
90%50%10%1%

What each source reports

NVD Score used 7.5

Jenkins 2.393 and earlier, LTS 2.375.3 and earlier uses the Apache Commons FileUpload library without specifying limits for the number of request parts introduced in version 1.5 for CVE-2023-24998 in hudson.util.MultipartFormDataParser, allowing attackers to trigger a denial of service.

Record
CVE-2023-27900
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-770
Updated
2026-11-02
CVE List 7.5

Jenkins 2.393 and earlier, LTS 2.375.3 and earlier uses the Apache Commons FileUpload library without specifying limits for the number of request parts introduced in version 1.5 for CVE-2023-24998 in hudson.util.MultipartFormDataParser, allowing attackers to trigger a denial of service.

Record
CVE-2023-27900
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-770
Updated
2026-11-02
EUVDEUVD-2023-1002 7.5

Jenkins 2.393 and earlier, LTS 2.375.3 and earlier uses the Apache Commons FileUpload library without specifying limits for the number of request parts introduced in version 1.5 for CVE-2023-24998 in hudson.util.MultipartFormDataParser, allowing attackers to trigger a denial of service.

Record
EUVD-2023-1002
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-frgr-c5f2-8qhh 6.5

Denial of service in Jenkins Core

Jenkins 2.393 and earlier, LTS 2.375.3 and earlier, and prior to LTS 2.387.1 is affected by the Apache Commons FileUpload library’s vulnerability CVE-2023-24998. This library is used to process uploaded files via the Stapler web framework (usually through StaplerRequest#getFile) and MultipartFormDataParser in Jenkins.

This allows attackers to cause a denial of service (DoS) by sending crafted requests to HTTP endpoints processing file uploads.

Jenkins 2.394, LTS 2.375.4, and LTS 2.387.1 limits the number of request parts to be processed to 1000. Specific endpoints receiving only simple form submissions have a lower limit.

Record
GHSA-frgr-c5f2-8qhh
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-770
Updated
2026-11-02
OSV 7.5

Jenkins 2.393 and earlier, LTS 2.375.3 and earlier uses the Apache Commons FileUpload library without specifying limits for the number of request parts introduced in version 1.5 for CVE-2023-24998 in hudson.util.MultipartFormDataParser, allowing attackers to trigger a denial of service.

Record
CVE-2023-27900
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
OSVGHSA-frgr-c5f2-8qhh 6.5

Denial of service in Jenkins Core

Jenkins 2.393 and earlier, LTS 2.375.3 and earlier, and prior to LTS 2.387.1 is affected by the Apache Commons FileUpload library’s vulnerability CVE-2023-24998. This library is used to process uploaded files via the Stapler web framework (usually through StaplerRequest#getFile) and MultipartFormDataParser in Jenkins.

This allows attackers to cause a denial of service (DoS) by sending crafted requests to HTTP endpoints processing file uploads.

Jenkins 2.394, LTS 2.375.4, and LTS 2.387.1 limits the number of request parts to be processed to 1000. Specific endpoints receiving only simple form submissions have a lower limit.

Record
GHSA-frgr-c5f2-8qhh
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-770
Updated
2026-11-02
OSVRHSA-2023:3299 9.8

Red Hat Security Advisory: jenkins and jenkins-2-plugins security update

Record
RHSA-2023:3299
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVBIT-jenkins-2023-27900 No score

Jenkins LTS 2.375.3 and earlier uses the Apache Commons FileUpload library without specifying limits for the number of request parts introduced in version 1.5 for CVE-2023-24998 in hudson.util.MultipartFormDataParser, allowing attackers to trigger a denial of service.

Record
BIT-jenkins-2023-27900
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
org.jenkins-ci.main:jenkins-core
Maven
 before 2.375.4
2.375.4
org.jenkins-ci.main:jenkins-core
Maven
 2.388 up to 2.394
2.394
org.jenkins-ci.main:jenkins-core
Maven
 2.376 up to 2.387.1
2.387.1
jenkins
Bitnami
 before 2.394.0
2.394.0
org.jenkins-ci.main:jenkins-core
Maven
 2.388 up to 2.394, plus listed versions
2.3892.3902.3912.3922.393
2.394
org.jenkins-ci.main:jenkins-core
Maven
 before 2.375.4, plus listed versions
1.3961.3971.3981.3991.400
Show 45 moreShow less
1.4011.4031.4041.4051.4061.4071.4081.4091.409.11.409.21.409.31.4101.4111.4121.4131.4141.4151.4161.4171.4181.4191.4201.4211.4221.4231.4241.424.11.424.21.424.31.424.41.424.51.424.61.4251.4261.4271.4281.4291.4301.4311.4321.4331.4341.4351.4361.437
2.375.4
org.jenkins-ci.main:jenkins-core
Maven
 2.376 up to 2.387.1, plus listed versions
2.3772.3782.3792.3802.381
Show 6 moreShow less
2.3822.3832.3842.3852.3862.387
2.387.1
jenkins-2-plugins
Red Hat:ocp_tools:4.13::el8
From an advisory covering 16 CVEs
 before 0:4.13.1684911916-1.el8
0:4.13.1684911916-1.el8
jenkins
Red Hat:ocp_tools:4.13::el8
From an advisory covering 16 CVEs
 before 0:2.387.3.1684911776-3.el8
0:2.387.3.1684911776-3.el8

History

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

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

In short

CVE-2023-27900 is a high vulnerability (CVSS 7.5) in Jenkins, published March 8, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.98%, the 62nd percentile. Fixed in org.jenkins-ci.main:jenkins-core 2.375.4.

References

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