CVE-2021-26068: Atlassian Jira Server For Slack

High severity, CVSS 8.8. EPSS: 3% chance of exploitation in the next 30 days.

An endpoint in Atlassian Jira Server for Slack plugin from version 0.0.3 before version 2.0.15 allows remote attackers to execute arbitrary code via a template injection vulnerability.

Affected products

• Atlassian Jira Server For Slack: from 0.0.3, before 2.0.15 (fixed in 2.0.15)

Published 2021-02-22. Last modified 2026-06-17.