Apache CXF: Denial of Service and sensitive data exposure in logs
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Partial Red Hat: 3 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-400.
Summary
Apache CXF stores large stream based messages as temporary files on the local filesystem. A bug was introduced which means that the entire temporary file is read into memory and then logged. An attacker might be able to exploit this to cause a denial of service attack by causing an out of memory exception. In addition, it is possible to configure CXF to encrypt temporary files to prevent sensitive credentials from being cached unencrypted on the local filesystem, however this bug means that the cached files are written out to logs unencrypted. Users are recommended to upgrade to versions 3.5.11, 3.6.6, 4.0.7 or 4.1.1, which fixes this issue.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apache | Apache CXF | 3.5.10 to before 3.5.11; 3.6.5 to before 3.6.6; 4.0.6 to before 4.0.7; 4.1.0 to before 4.1.1 | 3.5.11, 3.6.6, 4.0.7, 4.1.1 | Patch available | CNA |
| — | org.apache.cxf:cxf-core (Maven) | before 3.5.11 | 3.5.11 | Patch available | GHSA-36wv-v2qp-v4g4 |
| — | org.apache.cxf:cxf-core (Maven) | 3.6.0 to before 3.6.6 | 3.6.6 | Patch available | GHSA-36wv-v2qp-v4g4 |
| — | org.apache.cxf:cxf-core (Maven) | 4.0.0 to before 4.0.7 | 4.0.7 | Patch available | GHSA-36wv-v2qp-v4g4 |
| — | org.apache.cxf:cxf-core (Maven) | 4.1.0 to before 4.1.1 | 4.1.1 | Patch available | GHSA-36wv-v2qp-v4g4 |
- Apache CXF VendorApache Affected 3.5.10 to before 3.5.11; 3.6.5 to before 3.6.6; 4.0.6 to before 4.0.7; 4.1.0 to before 4.1.1 Fixed in 3.5.11, 3.6.6, 4.0.7, 4.1.1 Patch available CNA
- org.apache.cxf:cxf-core (Maven) Vendor— Affected before 3.5.11 Fixed in 3.5.11 Patch available GHSA-36wv-v2qp-v4g4
- org.apache.cxf:cxf-core (Maven) Vendor— Affected 3.6.0 to before 3.6.6 Fixed in 3.6.6 Patch available GHSA-36wv-v2qp-v4g4
- org.apache.cxf:cxf-core (Maven) Vendor— Affected 4.0.0 to before 4.0.7 Fixed in 4.0.7 Patch available GHSA-36wv-v2qp-v4g4
- org.apache.cxf:cxf-core (Maven) Vendor— Affected 4.1.0 to before 4.1.1 Fixed in 4.1.1 Patch available GHSA-36wv-v2qp-v4g4
Remediation
- Fix · CNA Apache CXF (Apache Software Foundation) Fixed in 3.5.11, 3.6.6, 4.0.7, 4.1.1
- Fix · GHSA-36wv-v2qp-v4g4 org.apache.cxf:cxf-core (Maven) Fixed in 3.5.11 Advisory →
- Fix · GHSA-36wv-v2qp-v4g4 org.apache.cxf:cxf-core (Maven) Fixed in 3.6.6 Advisory →
- Fix · GHSA-36wv-v2qp-v4g4 org.apache.cxf:cxf-core (Maven) Fixed in 4.0.7 Advisory →
- Fix · GHSA-36wv-v2qp-v4g4 org.apache.cxf:cxf-core (Maven) Fixed in 4.1.1 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat JBoss Enterprise Application Platform 7 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Enterprise Application Platform 8 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Enterprise Application Platform Expansion Pack | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2025-48795
- 2026-10-03 Alias added: GHSA-36wv-v2qp-v4g4
- 2026-10-05 EPSS moved to the 50th–90th percentile
References
Advisory 2
More Apache Cxf vulnerabilities
- TI-2019-09264 Incorrect authorization in Apache CXF CVSS 3.1CRITICAL 9.8
- TI-2020-10930 Apache CXF Reflected XSS in the services listing page via the styleSheetPath CVSS 3.1MEDIUM 6.1
- TI-2010-01990 Apache CXF 2.0.x before 2.0.13, 2.1.x before 2.1.10, and 2.2.x before 2.2.9, as used in… CVSS 3.1CRITICAL 9.8
- TI-2022-22907 Apache CXF SSRF Vulnerability CVSS 3.1CRITICAL 9.8
- TI-2026-47481 Apache CXF: Unsafe deserialization of inbound JMS ObjectMessage CVSS 3.1CRITICAL 9.8
- TI-2025-31053 Apache CXF: Untrusted JMS configuration can lead to RCE CVSS 3.1CRITICAL 9.8
Sources
- CVE-2025-48795 · CVE Program
- CVE-2025-48795 · NVD
- FIRST EPSS
- GHSA-36wv-v2qp-v4g4 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-48795 · Red Hat security data · CC BY 4.0
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