CVE-2026-42402 — Apache Neethi: Policy Normalization Unbounded Resource Allocation DoS

Description (CNA)

Apache Neethi is vulnerable to a Denial of Service attack through algorithmic complexity in policy normalization. Specially crafted WS-Policy documents can trigger an exponential Cartesian cross-product expansion during the normalization process, causing unbounded memory allocation that exhausts the JVM heap. This occurs when the normalization process generates an excessive number of policy alternatives without bounds, leading to runtime memory exhaustion. Users should upgrade to 3.2.2 which limits the maximum number of normalized policy alternatives.

Affected (CNA)

Vendor / product	Versions
Apache Software Foundation / Apache Neethi	affected 0 before 3.2.2

CWE

CWE-400

References

https://lists.apache.org/thread/p826j0phhmr9f83wzpmys1y0bdfrr2q4

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2026/05/01/6