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CVE-2026-42402VulnerabilityPublished Updated

Org.apache.neethi:neethi: Apache Neethi is vulnerable to a Denial of Service attack through algorithmic complexity in

Affects org.apache.neethi:neethiSource GCVE Database

0
Authoritative record:CVE-2026-42402· High 7.5

Not known to be exploited · CVSS 7.5 High : upgrade to 3.2.2 soon.

Data as of 27 Oct 2026, 00:07 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 3.2.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 1 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade org.apache.neethi:neethi to 3.2.2.

Affected software

ProductAffectedFixed in
Mavenorg.apache.neethi:neethiAffected
  • <3.2.2
Fixed in
  • 3.2.2

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

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.

References

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