Bug 2511979 (CVE-2026-57819) - CVE-2026-57819 Apache CXF: Apache CXF: Denial of Service via uncontrolled form parameters
Summary: CVE-2026-57819 Apache CXF: Apache CXF: Denial of Service via uncontrolled for...
Keywords:
Status: NEW
Alias: CVE-2026-57819
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
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Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-06 11:11 UTC by OSIDB Bzimport
Modified: 2026-10-04 07:38 UTC (History)
45 users (show)

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Description OSIDB Bzimport 2026-08-06 11:11:18 UTC 
Apache CXF allows to set a limit on the number of form parameters in a JAX-RS message via the "maxFormParameterCount" configuration option. However, no default limit is set which may lead to denial of service attacks when processing  requests with very large numbers of form parameters. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue by using a default limit of 500 parameters.
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