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CVE-2026-42404— Apache Neethi: Unrestricted HTTP Redirect Following in Policy References

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存在代码问题漏洞，该漏洞源于通过PolicyReference API手动获取远程策略引用时未对URI施加限制，可能导致对任意协议和内部IP地址发出出站请求。

CVSS 6.5 · Medium EPSS 0.58% · P46

Possible ATT&CK Techniques 1 AI

T1071.001 · Web Protocols

Affected Version Matrix 1

VendorProduct Version RangeStatus
Apache Software Foundation Apache Neethi < 3.2.2 affected
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I. Basic Information for CVE-2026-42404

Vulnerability Information
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Vulnerability Title
Apache Neethi: Unrestricted HTTP Redirect Following in Policy References
Source: CVE Program / CVE List V5
Vulnerability Description
Apache Neethi does not impose any restrictions on URIs when manually fetching remote policy references through the PolicyReference API. When an application explicitly calls the API to retrieve a policy from a remote URI, an outbound request is made for arbitrary protocols and internal IP adddresses. From 3.2.2, only http or https URIs are allowed, and link-local/multicast/any-local addresses are forbidden. Users are recommended to upgrade to version 3.2.2, which fixes this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Neethi 代码问题漏洞
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存在代码问题漏洞，该漏洞源于通过PolicyReference API手动获取远程策略引用时未对URI施加限制，可能导致对任意协议和内部IP地址发出出站请求。
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-2026-42404

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III. Intelligence Information for CVE-2026-42404

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Mailing List Discussions for CVE-2026-42404 (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-2026-42402 7.5 HIGH Apache Neethi: Policy Normalization Unbounded Resource Allocation DoS
CVE-2026-42403 7.5 HIGH Apache Neethi: Circular Policy Reference Infinite Loop

IV. Related Vulnerabilities

Same product: Apache Neethi
Same vendor: Apache Software Foundation
Same weakness: CWE-918

V. Comments for CVE-2026-42404

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