What is CVE-2026-47897?

CVE-2026-47897 is a high-severity vulnerability in Apache Lucene.net, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-07-03.

How severe is CVE-2026-47897?

High severity. CVSS v3 base score is 7.5 out of 10.

Path Traversal in Apache Lucene.net

CVE-2026-47897

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Apache Lucene.Net (Lucene.Net.Replicator library). This issue affects Apache Lucene.Net.Replicator: from 4.8.0-beta00005 before 4.8.0-beta00018. Users are recommended to upgrade to version 4.8.0-beta00018, which fixes the issue.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.006 (45.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Apache Lucene.net — versions 4.8.0
Apache Software Foundation Lucene.net — versions 4.8.0-beta00005

Weakness classification (CWE)

CWE-22 — Path Traversal

References

security@apache.org (vendor-advisory, Mailing List, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-47897?: CVE-2026-47897 is a high-severity vulnerability in Apache Lucene.net, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-07-03.
How severe is CVE-2026-47897?: High severity. CVSS v3 base score is 7.5 out of 10.