CVE-2021-28544: Apache Subversion

Medium severity, CVSS 4.3. EPSS: 2.8% chance of exploitation in the next 30 days.

Apache Subversion SVN authz protected copyfrom paths regression Subversion servers reveal 'copyfrom' paths that should be hidden according to configured path-based authorization (authz) rules. When a node has been copied from a protected location, users with access to the copy can see the 'copyfrom' path of the original. This also reveals the fact that the node was copied. Only the 'copyfrom' path is revealed; not its contents. Both httpd and svnserve servers are vulnerable.

Affected products

• Apache Subversion: from 1.10.0, up to and including 1.14.1
• Apple macOS: from 12.0, before 12.5 (fixed in 12.5)
• Debian Debian Linux: version 10.0 only; version 11.0 only
• Fedoraproject Fedora: version 35 only; version 36 only

Published 2022-04-12. Last modified 2026-06-17.