# CVE-2026-64958: eap8-apache-cxf: An incomplete fix for CVE-2026-50645 means that it is still possible to perform a denial of service attack on Apache...

CVE-2026-64958 is fixed in 3 products on 1 platform, first by RHSA-2026:92059, released August 17, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-64958
- Priority: High
- CVSS: 7.5 (important)
- EPSS: 0.0066
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 6, 2026

## Description

An incomplete fix for CVE-2026-50645 means that it is still possible to perform a denial of service attack on Apache CXF by sending a message with many attachment headers. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | eap8-apache-cxf RHEL 10 | 4.1.8-1.redhat_00001.1.el10eap | [RHSA-2026:92059](https://patchblox.com/security/data/fix/linux/rhsa-2026-92059.md) | Aug 17, 2026 |
| Linux | ovirt-engine-wildfly ol 8 | 0:24.0.1-4.el8 | [ELSA-2026-500570](https://patchblox.com/security/data/fix/linux/elsa-2026-500570.md) | Nov 7, 2026 |
| Linux | ovirt-engine-wildfly ol 9 | 0:24.0.1-4.el9 | [ELSA-2026-500571](https://patchblox.com/security/data/fix/linux/elsa-2026-500571.md) | Nov 7, 2026 |
| Linux | ovirt-engine-wildfly-overlay ol 8 | 0:24.0.1-4.el8 | [ELSA-2026-500570](https://patchblox.com/security/data/fix/linux/elsa-2026-500570.md) | Nov 7, 2026 |
| Linux | ovirt-engine-wildfly-overlay ol 9 | 0:24.0.1-4.el9 | [ELSA-2026-500571](https://patchblox.com/security/data/fix/linux/elsa-2026-500571.md) | Nov 7, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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