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TI-2019-15871 Aliases CVE-2019-1003026GHSA-wxj2-qc9p-65r3

Server-side request forgery in Jenkins Mattermost Notification Plugin

Priority LOW 22CWE-918Published · Updated

Key facts

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

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub.

Summary

A server-side request forgery vulnerability exists in Jenkins Mattermost Notification Plugin 2.6.2 and earlier in MattermostNotifier.java that allows attackers with Overall/Read permission to have Jenkins connect to an attacker-specified Mattermost server and room and send a message.

Why it matters now

EPSS 0.00896 59th percentileScored 2026-11-07
Fix Fixed org.jenkins-ci.plugins:mattermost (Maven): 2.6.3

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
JenkinsJenkins Mattermost Notification Pluginup to 2.6.2—No fix listedCNA
—org.jenkins-ci.plugins:mattermost (Maven)before 2.6.32.6.3Patch availableGHSA-wxj2-qc9p-65r3
  • Jenkins Mattermost Notification Plugin VendorJenkins Affected up to 2.6.2 Fixed in — No fix listed CNA
  • org.jenkins-ci.plugins:mattermost (Maven) Vendor— Affected before 2.6.3 Fixed in 2.6.3 Patch available GHSA-wxj2-qc9p-65r3

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:jenkins:mattermost:*:*:*:*:*:jenkins:*:*up to 2.6.2VulnerableJenkins
  • cpe:2.3:a:jenkins:mattermost:*:*:*:*:*:jenkins:*:* Versions up to 2.6.2 Vulnerable ·Jenkins

Remediation

  • Fix · GHSA-wxj2-qc9p-65r3 org.jenkins-ci.plugins:mattermost (Maven) Fixed in 2.6.3 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-1003026
  2. 2026-10-03 Alias added: GHSA-wxj2-qc9p-65r3

References

Advisory 2

Sources

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