CVE-2026-66755: 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 direc

unknownCVE-2026-66755

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.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: unknown
Published: 2026-07-30
Last updated: 2026-07-30
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-66755

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-667550.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-66755	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

medium[NEU] [mittel] Apache Tika: Mehrere Schwachstellencert-bund

Recent advisories for Relative Path Traversal

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

mediumCVE-2026-18192: VIN-DS783E-E6 developed by Vacron has an Arbitrary File Read vulnerability, allowing authentic…nvd · 2026-07-29
unknownCVE-2026-47078: Relative Path Traversal vulnerability in Erlang OTP (stdlib zip module) allows writing files o…nvd · 2026-07-27
mediumGHSA-49h3-cwhj-4737: Cloudreve: Path Traversal in WOPI PUT_RELATIVE Allows Arbitrary File Creation in Owner Ac…ghsa · 2026-07-24
criticalCVE-2026-12701: A path traversal vulnerability was found in pulpcore. The relative_path_validator function onl…nvd · 2026-07-20
highCVE-2026-56196: Relative path traversal in Windows Admin Center allows an authorized attacker to execute code …nvd · 2026-07-14
highCVE-2026-50454: Relative path traversal in Windows User Interface Core allows an authorized attacker to elevat…nvd · 2026-07-14