Medium

Jenkins Mattermost Notification Plugin vulnerable to SSRF

  • Disclosed: 13.05.2022
  • Updated: 11.10.2026 11:22

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.

Affected software

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PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) org.jenkins-ci.plugins:mattermost < 2.6.3 2.6.3

References

CVSS score 4.3/10
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness (CWE)
CWE-918
Platform
Java / Kotlin (Maven)
Package
org.jenkins-ci.plugins:mattermost
Disclosed
13.05.2022
Updated
11.10.2026 11:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-wxj2-qc9p-65r3 - CC BY 4.0

Vulnerability history: org.jenkins-ci.plugins:mattermost

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
2
First → latest
05.2022 05.2022
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Medium 2

Disclosures per year

  1. 2022: 2
  2. 2023: 0
  3. 2024: 0
  4. 2025: 0
  5. 2026: 0
  1. Jenkins Mattermost Notification Plugin vulnerable to SSRF this entry
    Medium · 4.3 CVE-2019-1003026 < 2.6.3 2.6.3

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