CVE-2017-12624

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-11-14 · updated 2026-06-17

Description

Apache CXF supports sending and receiving attachments via either the JAX-WS or JAX-RS specifications. It is possible to craft a message attachment header that could lead to a Denial of Service (DoS) attack on a CXF web service provider. Both JAX-WS and JAX-RS services are vulnerable to this attack. From Apache CXF 3.2.1 and 3.1.14, message attachment headers that are greater than 300 characters will be rejected by default. This value is configurable via the property "attachment-max-header-size".

Affected products

Apache Software Foundation Apache CXF: from 3.0.0 before 3.0.16; from 3.1.0 before 3.1.14; from 3.2.0 before 3.2.1 — fixed in 3.0.16, 3.1.14, 3.2.1

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache CXF 3.0.16, 3.1.14, 3.2.1. Check the vendor advisory for mitigations.

References

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