CVE-2025-23184 Apache CXF: Denial of Service vulnerability with temporary files

What is CVE-2025-23184?

CVE-2025-23184 is a medium-severity denial of service vulnerability in Apache Cxf, published on 21 Jan 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A potential denial of service vulnerability is present in versions of Apache CXF before 3.5.10, 3.6.5 and 4.0.6. In some edge cases, the CachedOutputStream instances may not be closed and, if backed by temporary files, may fill up the file system (it applies to servers and clients).

Weakness: CWE-400

Which versions are affected by CVE-2025-23184?

6 open source packages ship an affected version, including org.apache.cxf:cxf-core. It affects 1 product.

Products include Apache Cxf.

How do I fix CVE-2025-23184?

Upgrade org.apache.cxf:cxf-core to a fixed version for your release line: 3.5.10, 3.6.5 or 4.0.6.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2025-23184 being exploited?

There is no known exploitation of CVE-2025-23184 in the wild and no public exploit code.

Other vulnerabilities in Apache Cxf

• CVE-2012-2379 XML Signature/Encryption Not Validated in Apache CXF Critical 10.0
• CVE-2026-66909 Apache CXF: Unsafe deserialization of inbound JMS ObjectMessage Critical 9.8
• CVE-2026-68079 Apache CXF: DefaultEncryptingCodeDataProvider allows unlimited authorization code replay Critical 9.8
• CVE-2026-50628 Apache CXF: OAuth2: Inverted IP Binding Check Defeats Security Control Critical 9.8
• CVE-2025-48913 Apache CXF: Untrusted JMS configuration can lead to RCE Critical 9.8

All Apache Cxf vulnerabilities

Sources

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

Also known as CLSA-2025-1759363571, GHSA-fh5r-crhr-qrrq, MINI-xhcm-3qr3-fjqm.