CVE-2020-4026: Atlassian Navigator Links

Medium severity, CVSS 4.3. EPSS: 0.8% chance of exploitation in the next 30 days.

The CustomAppsRestResource list resource in Atlassian Navigator Links before version 3.3.23, from version 4.0.0 before version 4.3.7, from version 5.0.0 before 5.0.1, and from version 5.1.0 before 5.1.1 allows remote attackers to enumerate all linked applications, including those that are restricted or otherwise hidden, through an incorrect authorization check.

Affected products

• Atlassian Navigator Links: before 3.3.23 (fixed in 3.3.23); from 4.0.0, before 4.3.7 (fixed in 4.3.7); from 5.0.0, before 5.0.1 (fixed in 5.0.1); from 5.1.0, before 5.1.1 (fixed in 5.1.1)

Published 2020-06-03. Last modified 2026-06-17.