Improper Protection of Alternate Path vulnerability in Apache Tika. (CVE-2026-66756)
CVE-2026-66756 is an Improper Protection of Alternate Path vulnerability in Apache Tika affecting versions from 4.0.0-alpha-1 up to but not including 4.0.0-beta-1. This vulnerability allows unauthorized access or manipulation due to insufficient protection of alternate file paths. The issue is resolved in version 4.0.0-beta-1, which users are advised to upgrade to.
AI Analysis
Technical Summary
Apache Tika versions from 4.0.0-alpha-1 before 4.0.0-beta-1 contain an improper protection of alternate path vulnerability (CWE-424). This flaw could allow an attacker to bypass intended access controls by exploiting alternate file path handling. The vulnerability has a CVSS 3.1 base score of 9.8, indicating critical impact on confidentiality, integrity, and availability. The vendor fixed this issue in version 4.0.0-beta-1.
Potential Impact
Successful exploitation could lead to full compromise of confidentiality, integrity, and availability of affected systems running vulnerable Apache Tika versions. This means attackers may read, modify, or disrupt data processing handled by Tika.
Mitigation Recommendations
Users should upgrade Apache Tika to version 4.0.0-beta-1 or later, where this vulnerability is fixed. No other mitigations are specified. Patch status is confirmed by the vendor advisory stating the fix is in 4.0.0-beta-1.
Improper Protection of Alternate Path vulnerability in Apache Tika. (CVE-2026-66756)
Description
CVE-2026-66756 is an Improper Protection of Alternate Path vulnerability in Apache Tika affecting versions from 4.0.0-alpha-1 up to but not including 4.0.0-beta-1. This vulnerability allows unauthorized access or manipulation due to insufficient protection of alternate file paths. The issue is resolved in version 4.0.0-beta-1, which users are advised to upgrade to.
CVSS v3.1
Score 9.8critical
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Apache Tika versions from 4.0.0-alpha-1 before 4.0.0-beta-1 contain an improper protection of alternate path vulnerability (CWE-424). This flaw could allow an attacker to bypass intended access controls by exploiting alternate file path handling. The vulnerability has a CVSS 3.1 base score of 9.8, indicating critical impact on confidentiality, integrity, and availability. The vendor fixed this issue in version 4.0.0-beta-1.
Potential Impact
Successful exploitation could lead to full compromise of confidentiality, integrity, and availability of affected systems running vulnerable Apache Tika versions. This means attackers may read, modify, or disrupt data processing handled by Tika.
Mitigation Recommendations
Users should upgrade Apache Tika to version 4.0.0-beta-1 or later, where this vulnerability is fixed. No other mitigations are specified. Patch status is confirmed by the vendor advisory stating the fix is in 4.0.0-beta-1.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-6m77-jgxr-wx9c
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-66756"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 4.0
Threat ID: 6a6bdd879c2644c7f8da7068
Added to database: 07/30/2026, 23:25:59 UTC
Last enriched: 08/12/2026, 19:28:32 UTC
Last updated: 09/12/2026, 22:01:36 UTC
Views: 69
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