Vulnerability · Published Jul 30, 2026 · Assigned by apache
CVE-2026-66756Apache Tika: unpack endpoint in tika-server allows configuration with unsecureFeatures=false
Medium 6.9
In plain English
A medium-severity security flaw in Apache Tika from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 55% of all known vulnerabilities).
Severity (CVSS 4.0)6.9Medium
Exploit odds (30 days)0.7%top 45.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Improper Protection of Alternate Path vulnerability in Apache Tika. This issue affects Apache Tika: from 4.0.0-alpha-1 before 4.0.0-beta-1. Users are recommended to upgrade to version 4.0.0-beta-1, which fixes the issue.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:24.04:LTS | tika | no fix listed | UBUNTU-CVE-2026-66756 |
| Ubuntu:26.04:LTS | tika | no fix listed | UBUNTU-CVE-2026-66756 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache Tika | 4.0.0-alpha-1 – before 4.0.0-beta-1 |
Weakness: CWE-424 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N