CVE-2017-16857: Atlassian Bitbucket Auto Unapprove Plugin

High severity, CVSS 8.5. EPSS: 0.6% chance of exploitation in the next 30 days.

It is possible to bypass the bitbucket auto-unapprove plugin via minimal brute-force because it is relying on asynchronous events on the back-end. This allows an attacker to merge any code into unsuspecting repositories. This affects all versions of the auto-unapprove plugin, however since the auto-unapprove plugin is not bundled with Bitbucket Server it does not affect any particular version of Bitbucket.

Affected products

• Atlassian Bitbucket Auto Unapprove Plugin: version 1.0.0 only; version 1.1.0 only; version 1.2.0 only; version 2.0.1 only; version 2.0.2 only; version 2.0.4 only; …

Published 2017-12-05. Last modified 2026-06-17.