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Vulnerability record · CVE-2026-57819 · published 6 August 2026

CVE-2026-57819: Apache cxf uncontrolled resource consumption vulnerability

Apache · Cxf

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.

7.5 CVSS 3.1 High EPSS 0.73% · top 47.5% CWE-400 · Uncontrolled resource consumption
7.5CVSS 3.1 base score
0.73%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
7 Aug 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://lists.apache.org/thread/2n14mk01bjc3lrsyhzrkwy8h86289mov Mailing ListVendor Advisory
http://www.openwall.com/lists/oss-security/2026/08/06/15

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-57819), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.