What is CVE-2026-66143?

CVE-2026-66143 is a high-severity vulnerability in Apache Neethi, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-07-24.

How severe is CVE-2026-66143?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Apache Neethi

CVE-2026-66143

It is possible to bypass the maximum number of normalized policy alternatives that was introduced in Apache Neethi 3.2.2 via certain crafted policies, which may lead to a denial of service attack via resource consumption. Users are recommended to upgrade to version 3.2.3, which fixes this issue.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.005 (41.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Apache Neethi — versions 3.2.2
Apache Software Foundation Neethi — versions 0

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

security@apache.org (vendor-advisory, Mailing List, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-66143?: CVE-2026-66143 is a high-severity vulnerability in Apache Neethi, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-07-24.
How severe is CVE-2026-66143?: High severity. CVSS v3 base score is 7.5 out of 10.