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

What is CVE-2025-49656?

CVE-2025-49656 is a high-severity path traversal vulnerability in Apache Jena, published on 21 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-22

Which versions are affected by CVE-2025-49656?

2 open source packages ship an affected version, including org.apache.jena:jena-fuseki. It affects 1 product.

Products include Apache Jena.

How do I fix CVE-2025-49656?

Upgrade org.apache.jena:jena-fuseki to 5.5.0 or later.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2025-49656 being exploited?

There is no known exploitation of CVE-2025-49656 in the wild and no public exploit code.

Other vulnerabilities in Apache Jena

• CVE-2022-28890 Processing external DTDs Critical 9.8
• CVE-2025-50151 Apache Jena: Configuration files uploaded by administrative users are not check properly High 8.8
• CVE-2023-32200 Apache Jena: Exposure of execution in script engine expressions. High 8.8
• CVE-2021-39239 XML External Entity (XXE) vulnerability High 7.5
• CVE-2023-22665 Apache Jena: Exposure of arbitrary execution in script engine expressions. Medium 5.4

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2025-49656, GHSA-jq2c-m8gg-mqcm, UBUNTU-CVE-2025-49656.