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Vulnerability Intelligence

CVE-2020-2103

Medium

Jenkins 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
ProductAffected versionsFixed in
JenkinsJenkins>= unspecified2.218
org.jenkins-ci.main:jenkins-coremaven>= 2.2052.219
atomic-enterprise-service-catalogredhatSee advisory1:3.11.170-1.git.1.91db82e.el7
atomic-openshift-cluster-autoscalerredhatSee advisory0:3.11.170-1.git.1.0a0df6a.el7
atomic-openshift-deschedulerredhatSee advisory0:3.11.170-1.git.1.9ad83f2.el7
15 more affected products in the full CVE brief

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

  1. Publicly disclosed

    May 24, 2022

  2. Last updated

    Sep 8, 2026

Weakness Type

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

5 more references in the full CVE brief

FAQ

Common Questions.

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