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TI-2020-02130 Aliases CVE-2020-2253GHSA-4qrj-99r6-jfrh

Improper certificate validation in Jenkins Email Extension Plugin

Priority LOW 23CWE-295Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-295.

Summary

Jenkins Email Extension Plugin 2.75 and earlier does not perform hostname validation when connecting to the configured SMTP server.

Why it matters now

EPSS 0.00691 53rd percentileScored 2026-11-07
Fix Fixed Jenkins Email Extension Plugin (Jenkins project): 2.69.1, 2.68.1org.jenkins-ci.plugins:email-ext (Maven): 2.76

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
JenkinsJenkins Email Extension Pluginup to 2.752.69.1, 2.68.1Patch availableCNA
—org.jenkins-ci.plugins:email-ext (Maven)before 2.762.76Patch availableGHSA-4qrj-99r6-jfrh
  • Jenkins Email Extension Plugin VendorJenkins Affected up to 2.75 Fixed in 2.69.1, 2.68.1 Patch available CNA
  • org.jenkins-ci.plugins:email-ext (Maven) Vendor— Affected before 2.76 Fixed in 2.76 Patch available GHSA-4qrj-99r6-jfrh

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:jenkins:email_extension:*:*:*:*:*:jenkins:*:*up to 2.75VulnerableJenkins
  • cpe:2.3:a:jenkins:email_extension:*:*:*:*:*:jenkins:*:* Versions up to 2.75 Vulnerable ·Jenkins

Remediation

  • Fix · CNA Jenkins Email Extension Plugin (Jenkins project) Fixed in 2.69.1, 2.68.1
  • Fix · GHSA-4qrj-99r6-jfrh org.jenkins-ci.plugins:email-ext (Maven) Fixed in 2.76 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-2253
  2. 2026-10-03 Alias added: GHSA-4qrj-99r6-jfrh

References

Advisory 3

Other 2

  • TI-2019-15877 Protection mechanism failure in Jenkins Email Extension Plugin CVSS 3.1CRITICAL 9.9
  • TI-2023-11037 Protection mechanism failure in Jenkins Email Extension Plugin CVSS 3.1CRITICAL 9.9
  • TI-2026-36179 Jenkins Email Extension Plugin 1933.v45cec755423f and earlier allows inlining images as… CVSS 3.1HIGH 8.8
  • TI-2020-02109 Cleartext transmission of sensitive information in Jenkins Email Extension Plugin CVSS 3.1HIGH 7.5
  • TI-2018-15825 An exposure of sensitive information vulnerability exists in Jenkins Email Extension… CVSS 3.0MEDIUM 6.5
  • TI-2017-01904 Information disclosure in [UNKNOWN] jenkins-email-ext CVSS 3.0MEDIUM 5.3
See all 10 →

Sources

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