CVE-2025-49656: Apache Jena: Administrative users can create files outside the server directory space via the admin UI

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-07-21 · updated 2026-06-17
Weakness: CWE-22

Description

Users with administrator access can create databases files outside the files area of the Fuseki server. This issue affects Apache Jena version up to 5.4.0. Users are recommended to upgrade to version 5.5.0, which fixes the issue.

Affected products

Apache Software Foundation Apache Jena: before 5.5.0 — fixed in 5.5.0

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache Jena 5.5.0. Check the vendor advisory for mitigations.

References

https://lists.apache.org/thread/qmm21som8zct813vx6dfd1phnfro6mwq
http://www.openwall.com/lists/oss-security/2025/07/21/1

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