Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

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

Quick assessment

Affected
Apache Software Foundation Apache Neethi
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Neethi是Apache基金会的一个策略处理框架库。 Apache Neethi存在资源管理错误漏洞，该漏洞源于策略规范化中的算法复杂性，可能导致特制WS-Policy文档触发指数级笛卡尔积扩展，导致内存耗尽。

CVSS 7.5 · High EPSS 0.71% · P52

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 1

VendorProduct Version RangeStatus
Apache Software Foundation Apache Neethi < 3.2.2 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-42402

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Apache Neethi: Policy Normalization Unbounded Resource Allocation DoS
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Neethi 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Neethi是Apache基金会的一个策略处理框架库。 Apache Neethi存在资源管理错误漏洞，该漏洞源于策略规范化中的算法复杂性，可能导致特制WS-Policy文档触发指数级笛卡尔积扩展，导致内存耗尽。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Neethi 0 ~ 3.2.2 -

II. Public POCs for CVE-2026-42402

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-42402

请登录查看更多情报信息。

Mailing List Discussions for CVE-2026-42402 (1)

Same Patch Batch · Apache Software Foundation · 2026-05-01 · 5 CVEs total

CVE-2026-42778 9.8 CRITICAL Apache MINA: CWE-502 Deserialization of Untrusted Data (take 2)
CVE-2026-42779 9.8 CRITICAL Apache MINA: AbstractIoBuffer.resolveClass() null-clazz Branch Skips acceptMatchers Filter
CVE-2026-42403 7.5 HIGH Apache Neethi: Circular Policy Reference Infinite Loop
CVE-2026-42404 6.5 MEDIUM Apache Neethi: Unrestricted HTTP Redirect Following in Policy References

IV. Related Vulnerabilities

Same product: Apache Neethi
Same vendor: Apache Software Foundation
Same weakness: CWE-400

V. Comments for CVE-2026-42402

No comments yet

Leave a comment