# CVE-2026-66755: libtika-java: Relative Path Traversal in the ISA-Tab parser in Apache Software Foundation Apache Tika from 1.8 through 3.3.1, and 4...

CVE-2026-66755 is fixed in libtika-java on 1 platform, first by libtika-java 1.22-1ubuntu0.1~esm3, released July 30, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-66755
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0063
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 30, 2026

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libtika-java Ubuntu 20.04 LTS (focal) | 1.22-1ubuntu0.1~esm3 | [libtika-java 1.22-1ubuntu0.1~esm3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libtika-java-1.22-1ubuntu0.1-esm3.md) | Jul 30, 2026 |
| Linux | libtika-java Ubuntu 22.04.1 LTS (jammy) | 1.22-2+deb11u1ubuntu0.1~esm2 | [libtika-java 1.22-2+deb11u1ubuntu0.1~esm2](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libtika-java-1.22-2-deb11u1ubuntu0.1-esm2.md) | Jul 30, 2026 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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