CVE-2026-47897: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in Apache Software Foundation Apache Lucene.Net
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.
AI Analysis
Technical Summary
CVE-2026-47897 is a path traversal vulnerability (CWE-22) in Apache Lucene.Net's Lucene.Net.Replicator library affecting versions from 4.8.0-beta00005 before 4.8.0-beta00018. This flaw allows attackers to bypass directory restrictions by manipulating pathnames, potentially accessing unauthorized files. The vulnerability has a CVSS 4.0 score of 8.9, indicating high severity. Users are advised to upgrade to version 4.8.0-beta00018 where the issue is resolved.
Potential Impact
Exploitation of this vulnerability could allow an attacker to access files outside of the intended directory restrictions within the Lucene.Net.Replicator component. This may lead to unauthorized disclosure of sensitive information. The CVSS score of 8.9 reflects a high impact with network attack vector, high complexity, and no privileges or user interaction required.
Mitigation Recommendations
Users should upgrade Apache Lucene.Net to version 4.8.0-beta00018 or later, where this path traversal vulnerability is fixed. Patch status is confirmed by the vendor advisory recommending this upgrade. No other mitigations are specified.
CVE-2026-47897: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in Apache Software Foundation Apache Lucene.Net
Description
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.
CVSS v4.0
Score 8.9high
Affected software
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-47897 is a path traversal vulnerability (CWE-22) in Apache Lucene.Net's Lucene.Net.Replicator library affecting versions from 4.8.0-beta00005 before 4.8.0-beta00018. This flaw allows attackers to bypass directory restrictions by manipulating pathnames, potentially accessing unauthorized files. The vulnerability has a CVSS 4.0 score of 8.9, indicating high severity. Users are advised to upgrade to version 4.8.0-beta00018 where the issue is resolved.
Potential Impact
Exploitation of this vulnerability could allow an attacker to access files outside of the intended directory restrictions within the Lucene.Net.Replicator component. This may lead to unauthorized disclosure of sensitive information. The CVSS score of 8.9 reflects a high impact with network attack vector, high complexity, and no privileges or user interaction required.
Mitigation Recommendations
Users should upgrade Apache Lucene.Net to version 4.8.0-beta00018 or later, where this path traversal vulnerability is fixed. Patch status is confirmed by the vendor advisory recommending this upgrade. No other mitigations are specified.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-05-20T14:24:00.557Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a476a1627e9c79719455be4
Added to database: 07/03/2026, 07:51:50 UTC
Last enriched: 07/10/2026, 08:44:26 UTC
Last updated: 08/16/2026, 00:59:46 UTC
Views: 107
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.