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CVE-2026-42402

⚠️ high
🔍 Scan for this CVE
Summary

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 li

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.

CVSS Score
7.5
High
EPSS Score
0.0
Exploit Probability
Published Date
2026-05-01
First Seen: 2026-05-03
📊 Relative Risk Intelligence

This CVE is Moderate Risk - more severe than 68.5% of all 340,405 vulnerabilities in our database.

#107,108
Above average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: May 1, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
YES
Can be exploited automatically
💥 Technical Impact
Partial
Limited system impact
SSVC data provided by CISA
Last Modified 2026-05-01
Source NVD 🔗
CVSS Vector 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE IDs (Weakness Types)
CWE-400

📦 Affected Products 1

Vendor Product Status Affected Versions
apache neethi Affected
< 3.2.2

🔗 References 2

https://lists.apache.org/thread/p826j0phhmr9f83wzpmy...
Mailing List Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/05/01/6
Mailing List Third Party Advisory

🔗 Related CVEs 5

CVE ID Severity CVSS EPSS Summary Published
CVE-2026-66142 ⚠️ high 7.5 0.5 Apache Neethi is vulnerable to uncontrolled recursion when parsing policies that lack policy Ids or with deeply nested s... 2026-07-24
CVE-2026-66143 ⚠️ high 7.5 0.5 It is possible to bypass the maximum number of normalized policy alternatives that was introduced in Apache Neethi 3.2.... 2026-07-24
CVE-2026-66144 ⚠️ high 7.5 0.5 Although remote policy references are not retrieved during policy normalization, if they are manually retrieved via the ... 2026-07-24
CVE-2026-42403 ⚠️ high 7.5 0.0 Apache Neethi does not properly detect circular references in policy definitions. When a WS-Policy document contains cir... 2026-05-01
CVE-2026-42404 🔶 medium 6.5 0.0 Apache Neethi does not impose any restrictions on URIs when manually fetching remote policy references through the Polic... 2026-05-01
These CVEs affect the same products