CVE-2020-2103
MediumJenkins Diagnostic page exposed session cookies
Published May 24, 2022 · Updated Sep 8, 2026 · Also known as BIT-jenkins-2020-2103, GHSA-4jjj-cm7q-v6hr
Key Facts
Routine patching- CVE-2020-2103 is a medium-severity vulnerability (CVSS 5.4 v3.1) affecting Jenkins, org.jenkins-ci.main:jenkins-core (maven), atomic-enterprise-service-catalog (redhat) and 17 more products.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 7.0% probability of exploitation in the next 30 days.
- Fixed versions are available, including atomic-enterprise-service-catalog 1:3.11.170-1.git.1.91db82e.el7, atomic-openshift 0:3.11.170-1.git.0.00cac56.el7, atomic-openshift-cluster-autoscaler 0:3.11.170-1.git.1.0a0df6a.el7.
- Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
CVSS v3.1
5.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS (30-day exploit likelihood)
7.0%
Higher than 94.1% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
Get the full CVE-2020-2103 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
Jenkins 2.218 and earlier, LTS 2.204.1 and earlier exposed session identifiers on a user's detail object in the whoAmI diagnostic page.
Affected Products
25 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| JenkinsJenkins | >= unspecified | 2.218 |
| org.jenkins-ci.main:jenkins-coremaven | >= 2.205 | 2.219 |
| atomic-enterprise-service-catalogredhat | See advisory | 1:3.11.170-1.git.1.91db82e.el7 |
| atomic-openshift-cluster-autoscalerredhat | See advisory | 0:3.11.170-1.git.1.0a0df6a.el7 |
| atomic-openshift-deschedulerredhat | See advisory | 0:3.11.170-1.git.1.9ad83f2.el7 |
Patched Releases
atomic-enterprise-service-catalog
1:3.11.170-1.git.1.91db82e.el7
atomic-openshift
0:3.11.170-1.git.0.00cac56.el7
atomic-openshift-cluster-autoscaler
0:3.11.170-1.git.1.0a0df6a.el7
atomic-openshift-descheduler
0:3.11.170-1.git.1.9ad83f2.el7
atomic-openshift-dockerregistry
0:3.11.170-1.git.1.55fab05.el7
atomic-openshift-metrics-server
0:3.11.170-1.git.1.357f177.el7
atomic-openshift-node-problem-detector
0:3.11.170-1.git.1.b1f90a6.el7
atomic-openshift-service-idler
0:3.11.170-1.git.1.8328979.el7
atomic-openshift-web-console
0:3.11.170-1.git.1.3d64e8b.el7
cri-o
0:1.11.16-0.5.dev.rhaos3.11.git3f89eba.el7
golang-github-openshift-oauth-proxy
0:3.11.170-1.git.1.b49be83.el7
golang-github-prometheus-alertmanager
0:3.11.170-1.git.1.61d7960.el7
golang-github-prometheus-node_exporter
0:3.11.170-1.git.1.51473b7.el7
golang-github-prometheus-prometheus
0:3.11.170-1.git.1.227bc98.el7
Jenkins
0:2.204.2.1580891656-1.el7, 2.218.1, <=2.204.1, <=2.218
openshift-ansible
0:3.11.170-2.git.5.8802564.el7
openshift-enterprise-autoheal
0:3.11.170-1.git.1.dfe6c52.el7
openshift-enterprise-cluster-capacity
0:3.11.170-1.git.1.661684b.el7
openshift-kuryr
0:3.11.170-1.git.1.7265da1.el7
org.jenkins-ci.main:jenkins-core
2.204.2, 2.219
Timeline
Publicly disclosed
May 24, 2022
Last updated
Sep 8, 2026
Weakness Type
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
- advisoryGHSA advisory
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2020-2103
- articleRHBA-2020:0402
- articleRHBA-2020:0675
- articleRHSA-2020:0681
FAQ
Common Questions.
Jenkins 2.218 and earlier, LTS 2.204.1 and earlier exposed session identifiers on a user's detail object in the whoAmI diagnostic page.
Affected: Jenkins versions >= unspecified; org.jenkins-ci.main:jenkins-core (maven) versions >= 2.205; atomic-enterprise-service-catalog (redhat), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including atomic-enterprise-service-catalog 1:3.11.170-1.git.1.91db82e.el7, atomic-openshift 0:3.11.170-1.git.0.00cac56.el7, atomic-openshift-cluster-autoscaler 0:3.11.170-1.git.1.0a0df6a.el7.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
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