CVE-2019-20097: Atlassian Bitbucket

High severity, CVSS 8.8. EPSS: 2.5% chance of exploitation in the next 30 days.

Bitbucket Server and Bitbucket Data Center versions starting from 1.0.0 before 5.16.11, from version 6.0.0 before 6.0.11, from version 6.1.0 before 6.1.9, from version 6.2.0 before 6.2.7, from version 6.3.0 before 6.3.6, from version 6.4.0 before 6.4.4, from version 6.5.0 before 6.5.3, from version 6.6.0 before 6.6.3, from version 6.7.0 before 6.7.3, from version 6.8.0 before 6.8.2, from version 6.9.0 before 6.9.1 had a Remote Code Execution vulnerability via the post-receive hook. A remote attacker with permission to clone and push files to a repository on the victim's Bitbucket Server or Bitbucket Data Center instance, can exploit this vulnerability to execute arbitrary commands on the Bitbucket Server or Bitbucket Data Center systems, using a file with specially crafted content.

Affected products

• Atlassian Bitbucket: from 1.0.0, before 5.6.11 (fixed in 5.6.11); from 6.0.0, before 6.0.11 (fixed in 6.0.11); from 6.1.0, before 6.1.9 (fixed in 6.1.9); from 6.2.0, before 6.2.7 (fixed in 6.2.7); from 6.3.0, before 6.3.6 (fixed in 6.3.6); from 6.4.0, before 6.4.4 (fixed in 6.4.4); …

Published 2020-01-15. Last modified 2026-06-17.