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CVE-2023-27902

Incorrect Permission Preservation in Jenkins Core

4.3 MediumFix available

Jenkins 2.393 and earlier, LTS 2.375.3 and earlier shows temporary directories related to job workspaces, which allows attackers with Item/Workspace permission to access their contents.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
None
Availability
None

Exploit likelihood

0.74%Up 0.7 points since Mar 9, 2023
90%50%10%1%

What each source reports

NVD Score used 4.3

Jenkins 2.393 and earlier, LTS 2.375.3 and earlier shows temporary directories related to job workspaces, which allows attackers with Item/Workspace permission to access their contents.

Record
CVE-2023-27902
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02
CVE List 4.3

Jenkins 2.393 and earlier, LTS 2.375.3 and earlier shows temporary directories related to job workspaces, which allows attackers with Item/Workspace permission to access their contents.

Record
CVE-2023-27902
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02
EUVDEUVD-2023-0984 4.3

Jenkins 2.393 and earlier, LTS 2.375.3 and earlier shows temporary directories related to job workspaces, which allows attackers with Item/Workspace permission to access their contents.

Record
EUVD-2023-0984
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-cj6r-8pxj-5jv6 4.3

Incorrect Permission Preservation in Jenkins Core

Jenkins uses temporary directories adjacent to workspace directories, usually with the @tmp name suffix, to store temporary files related to the build. In pipelines, these temporary directories are adjacent to the current working directory when operating in a subdirectory of the automatically allocated workspace. Jenkins-controlled processes, like SCMs, may store credentials in these directories.

Jenkins 2.393 and earlier, LTS 2.375.3 and earlier, and prior to LTS 2.387.1 shows these temporary directories when viewing job workspaces, which allows attackers with Item/Workspace permission to access their contents.

Jenkins 2.394, LTS 2.375.4, and LTS 2.387.1 does not list these temporary directories in job workspaces.

As a workaround, do not grant Item/Workspace permission to users who lack Item/Configure permission, if you’re concerned about this issue but unable to immediately update Jenkins.

Record
GHSA-cj6r-8pxj-5jv6
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02
OSV 4.3

Jenkins 2.393 and earlier, LTS 2.375.3 and earlier shows temporary directories related to job workspaces, which allows attackers with Item/Workspace permission to access their contents.

Record
CVE-2023-27902
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02
OSVGHSA-cj6r-8pxj-5jv6 4.3

Incorrect Permission Preservation in Jenkins Core

Jenkins uses temporary directories adjacent to workspace directories, usually with the @tmp name suffix, to store temporary files related to the build. In pipelines, these temporary directories are adjacent to the current working directory when operating in a subdirectory of the automatically allocated workspace. Jenkins-controlled processes, like SCMs, may store credentials in these directories.

Jenkins 2.393 and earlier, LTS 2.375.3 and earlier, and prior to LTS 2.387.1 shows these temporary directories when viewing job workspaces, which allows attackers with Item/Workspace permission to access their contents.

Jenkins 2.394, LTS 2.375.4, and LTS 2.387.1 does not list these temporary directories in job workspaces.

As a workaround, do not grant Item/Workspace permission to users who lack Item/Configure permission, if you’re concerned about this issue but unable to immediately update Jenkins.

Record
GHSA-cj6r-8pxj-5jv6
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
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-2023-27902 No score

Jenkins LTS 2.375.3 and earlier shows temporary directories related to job workspaces, which allows attackers with Item/Workspace permission to access their contents.

Record
BIT-jenkins-2023-27902
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
 2.376 up to 2.387.1
2.387.1
org.jenkins-ci.main:jenkins-core
Maven
 2.388 up to 2.394
2.394
jenkins
Bitnami
 before 2.394.0
2.394.0
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
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
 2.388 up to 2.394, plus listed versions
2.3892.3902.3912.3922.393
2.394
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-2023-27902 is a medium vulnerability (CVSS 4.3) in Jenkins, published March 8, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.74%, the 55th percentile. Fixed in org.jenkins-ci.main:jenkins-core 2.375.4.

References

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