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TI-2021-04687 Aliases CVE-2021-21607GHSA-cxqw-vjcr-gp5g

Resource allocation without limits in Jenkins

Priority LOW 32CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-770.

Summary

Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not limit sizes provided as query parameters to graph-rendering URLs, allowing attackers to request crafted URLs that use all available memory in Jenkins, potentially leading to out of memory errors.

Why it matters now

EPSS 0.01462 73rd percentileScored 2026-11-08
Fix Fixed org.jenkins-ci.main:jenkins-core (Maven): 2.263.2, 2.275Red Hat: 4 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
JenkinsJenkinsup to 2.274; up to LTS 2.263.1—No fix listedCNA
—org.jenkins-ci.main:jenkins-core (Maven)before 2.263.22.263.2Patch availableGHSA-cxqw-vjcr-gp5g
—org.jenkins-ci.main:jenkins-core (Maven)2.264 to before 2.2752.275Patch availableGHSA-cxqw-vjcr-gp5g
  • Jenkins VendorJenkins Affected up to 2.274; up to LTS 2.263.1 Fixed in — No fix listed CNA
  • org.jenkins-ci.main:jenkins-core (Maven) Vendor— Affected before 2.263.2 Fixed in 2.263.2 Patch available GHSA-cxqw-vjcr-gp5g
  • org.jenkins-ci.main:jenkins-core (Maven) Vendor— Affected 2.264 to before 2.275 Fixed in 2.275 Patch available GHSA-cxqw-vjcr-gp5g

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*up to 2.263.1VulnerableJenkins
cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*up to 2.274VulnerableJenkins
  • cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:* Versions up to 2.263.1 Vulnerable ·Jenkins
  • cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:* Versions up to 2.274 Vulnerable ·Jenkins

Remediation

  • Fix · GHSA-cxqw-vjcr-gp5g org.jenkins-ci.main:jenkins-core (Maven) Fixed in 2.263.2 Advisory →
  • Fix · GHSA-cxqw-vjcr-gp5g org.jenkins-ci.main:jenkins-core (Maven) Fixed in 2.275 Advisory →

Red Hat 4 advisories

  • RHSA-2021:2437 Released 2021-07-27 · Red Hat rating Moderate
    OpenShift Container Platform 4.8.2 packages and security update
    • Red Hat OpenShift Container Platform 4.8 afterburn-5.0.0-1.rhaos4.8.el8, atomic-openshift-service-idler-4.8.0-202106281541.p0.git.39cfc66.assembly.stream.el8, butane-0.12.1-1.rhaos4.8.el8 +47
  • RHSA-2021:0637 Released 2021-03-03 · Red Hat rating Important
    OpenShift Container Platform 3.11.394 bug fix and security update
    • Red Hat OpenShift Container Platform 3.11 jenkins-2-plugins-3.11.1612862361-1.el7, jenkins-2.263.3.1612433584-1.el7, python-rsa-4.5-3.el7 +1
  • RHSA-2021:0429 Released 2021-03-03 · Red Hat rating Important
    OpenShift Container Platform 4.5.33 packages and security update
    • Red Hat OpenShift Container Platform 4.5 conmon-2:2.0.21-1.rhaos4.5.el7, conmon-2:2.0.21-1.rhaos4.5.el8, jenkins-2.263.3.1612434332-1.el7 +12
Show 1 more Red Hat advisories
  • RHSA-2021:0423 Released 2021-02-17 · Red Hat rating Important
    OpenShift Container Platform 4.6.17 security and packages update
    • Red Hat OpenShift Container Platform 4.6 jenkins-2.263.3.1612434510-1.el8

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat OpenShift Container Platform 3.11Fixed RHSA-2021:0637
Red Hat OpenShift Container Platform 4.5Fixed RHSA-2021:0429
Red Hat OpenShift Container Platform 4.6Fixed RHSA-2021:0423
Red Hat OpenShift Container Platform 4.8Fixed RHSA-2021:2437
Not affected: 3 products
  • Red Hat Fuse 7
  • Red Hat OpenShift Container Platform 3.11
  • Red Hat OpenShift Container Platform 4.6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-21607
  2. 2026-10-03 Alias added: GHSA-cxqw-vjcr-gp5g

References

Advisory 2

Other 2

  • TI-2024-15885 Path traversal in Jenkins KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8
  • TI-2017-14573 Jenkins versions 2.56 and earlier as well as 2.46.1 LTS and earlier are vulnerable to an… KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2015-04472 The Fingerprints pages in Jenkins before 1.638 and LTS before 1.625.2 might allow remote… KEVCVSS 3.1HIGH 7.5
  • TI-2016-07596 The remoting module in Jenkins before 2.32 and LTS before 2.19.3 allows remote attackers… CVSS 3.0CRITICAL 9.8
See all 293 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences