Medium 4.3Published Apr 12, 2022

CVE-2021-28544Apache Subversion SVN authz protected copyfrom paths regression Subversion servers reveal 'copyfrom' paths that should be hidden according to configured path-based authorization (authz) rules.

Updated under an hour ago (Nov 2, 2026, 2:40 AM ET)

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It affects apache subversion and 3 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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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.

CVSS: 4.3 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-200
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

apache subversion apache:subversion	from 1.10.0 through 1.14.1	NVD
debian debian_linux debian:debian_linux	10.0; 11.0	NVD
fedoraproject fedora fedoraproject:fedora	35; 36; 35; 36	NVD
apple macos apple:macos	from 12.0 before 12.5	NVD

References

References

http://seclists.org/fulldisclosure/2022/Jul/18	mailing-list, third-party-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PZ4ARNGLMGYBKYDX2B7DRBNMF6EH3A6R/	mailing-list, third-party-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YJPMCWCGWBN3QWCDVILWQWPC75RR67LT/	mailing-list, third-party-advisory
https://subversion.apache.org/security/CVE-2021-28544-advisory.txt	exploit, patch, vendor-advisory
https://support.apple.com/kb/HT213345	third-party-advisory
https://www.debian.org/security/2022/dsa-5119	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.