CVE-2026-66755
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk6th percentile - higher than 6% of all known CVEs
Summary
Apache Tika from version 1.8 through 3.3.1 and 4.0.0-alpha-1 has a relative path traversal vulnerability in the ISA-Tab parser. An attacker can place files in a directory and then read arbitrary files accessible to the Tika process via a crafted "Study Assay File Name" value.
Risk Assessment
An attacker can read sensitive files on the server, such as configurations, keys, or user data, leading to information disclosure.
Recommendation
Upgrade Apache Tika to version 3.3.2 or 4.0.0-beta-1.
Other vulnerabilities in Apache Tika
See all- CVE-2016-4434High
Apache Tika before 1.13 does not properly initialize the XML parser or choose handlers, which might allow remote attackers to conduct XML External Entity (XXE) attacks via vectors involving spreadsheets in OOXML files and XMP metadata in PDF and other file formats.
- CVE-2026-66756Critical
Apache Tika from 4.0.0-alpha-1 to before 4.0.0-beta-1 has an improper protection of alternate path vulnerability. An attacker could exploit this to bypass security controls.
- CVE-2016-6809Critical
Apache Tika before 1.14 allows Java code execution for serialized objects embedded in MATLAB files. The issue exists because Tika invokes JMatIO to do native deserialization.
Original NVD description (English source)
Relative Path Traversal in the ISA-Tab parser in Apache Software Foundation Apache Tika from 1.8 through 3.3.1, and 4.0.0-alpha-1, allows an attacker who can place files in a directory that the application subsequently parses to read arbitrary files accessible to the Tika process and have their contents emitted into the extracted text output, via a "Study Assay File Name" value in the ISA-Tab investigation file that traverses outside the dataset directory. Users are recommended to upgrade to version 3.3.2 or 4.0.0-beta-1, which fixes this issue.