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TI-2021-04701 Aliases CVE-2021-21621GHSA-92pg-8g57-hqpx

Information disclosure in Jenkins Support Core Plugin

Priority LOW 26CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-200.

Summary

Jenkins Support Core Plugin 2.72 and earlier provides the serialized user authentication as part of the "About user (basic authentication details only)" information, which can include the session ID of the user creating the support bundle in some configurations.

Why it matters now

EPSS 0.01206 68th percentileScored 2026-11-07
Fix Fixed Jenkins Support Core Plugin (Jenkins project): 2.70.1, 2.68.1org.jenkins-ci.plugins:support-core (Maven): 2.72.1

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
JenkinsJenkins Support Core Pluginup to 2.722.70.1, 2.68.1Patch availableCNA
—org.jenkins-ci.plugins:support-core (Maven)before 2.72.12.72.1Patch availableGHSA-92pg-8g57-hqpx
  • Jenkins Support Core Plugin VendorJenkins Affected up to 2.72 Fixed in 2.70.1, 2.68.1 Patch available CNA
  • org.jenkins-ci.plugins:support-core (Maven) Vendor— Affected before 2.72.1 Fixed in 2.72.1 Patch available GHSA-92pg-8g57-hqpx

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:jenkins:support_core:*:*:*:*:*:jenkins:*:*up to 2.72VulnerableJenkins
  • cpe:2.3:a:jenkins:support_core:*:*:*:*:*:jenkins:*:* Versions up to 2.72 Vulnerable ·Jenkins

Remediation

  • Fix · CNA Jenkins Support Core Plugin (Jenkins project) Fixed in 2.70.1, 2.68.1
  • Fix · GHSA-92pg-8g57-hqpx org.jenkins-ci.plugins:support-core (Maven) Fixed in 2.72.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-21621
  2. 2026-10-03 Alias added: GHSA-92pg-8g57-hqpx

References

Advisory 2

Other 2

  • TI-2019-12402 Path traversal in Jenkins Support Core Plugin CVSS 3.1MEDIUM 6.5
  • TI-2022-08900 Jenkins Support Core Plugin 2.79 and earlier does not redact some sensitive information in the support bundle. CVSS 3.1MEDIUM 6.5
  • TI-2022-22349 Incorrect authorization in Jenkins Support Core Plugin CVSS 3.1MEDIUM 6.5
  • TI-2019-12401 A missing permission check in Jenkins Support Core Plugin 2.63 and earlier allows… CVSS 3.1MEDIUM 6.5

Sources

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