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Fencer Vulns
medium 4.3

CVE-2023-27902 json

Incorrect Permission Preservation in Jenkins Core

published 2023-03-08 3 y ago modified 2026-09-08 2 mo ago also BIT-jenkins-2023-27902 , EUVD-2023-0984 , GHSA-cj6r-8pxj-5jv6

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

Summary

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.

Patch / fix

  • maven org.jenkins-ci.main:jenkins-core 2.375.4, 2.387.1, 2.394
  • bitnami jenkins 2.394.0
  • Jenkins Project Jenkins 2.394
  • jenkins ocp tools 4.13 2.387.3.1684911776-3.el8
  • jenkins-2-plugins ocp tools 4.13 4.13.1684911916-1.el8

red hat advisories RHSA-2023:3299

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-27902 updated cvss 4.3

Jenkins: Workspace temporary directories accessible through directory browser

  • Red Hat OpenShift Container Platform 3.11 jenkins
    affected: no fix planned “Out of support scope”
  • Red Hat OpenShift Container Platform 4 jenkins
    affected: no fix available
  • Red Hat OpenShift Developer Tools and Services for OCP 4.13 jenkins 2.387.3.1684911776-3.el8
    fixed: vendor fix RHSA-2023:3299
  • Red Hat OpenShift Developer Tools and Services for OCP 4.13 jenkins-2-plugins 4.13.1684911916-1.el8
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
20 mo ago

Exploit prediction

0.74% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
GitHub 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
OSV 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem package affected fixed in
maven org.jenkins-ci.main:jenkins-core
>=2.376, <2.387.1
<2.375.4
>=2.388, <2.394
2.387.1
2.375.4
2.394
bitnami jenkins
<2.394.0
2.394.0

Affected products

  • Jenkins Project Jenkins

Classification

Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.