CVE-2026-64958CWE-400denial-of-service

CVE-2026-64958

High · published August 6, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
51.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00664 · 51.1th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2026-08-06T15:16Z
Affected products (3)
ProductVersionsFixed in
apache/cxf< 3.6.123.6.12
apache/cxf≥ 4.0.0, < 4.1.84.1.8
apache/cxf≥ 4.2.0, < 4.2.34.2.3
References (1)
https://lists.apache.org/thread/trsnkxc2f21585zlt819blvchgl6oykb · [email protected]
EPSS history
Timeline
  • 06 AUG 10:13Z
    Apache CXF: Denial of service via message header attachments
    cvelistv5