CVE-2026-42402

highpriority · track · 0EPSS 0.007 · 53 %ileDEEUFRRUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.71% (53rd) EPSS

CVSS 7.5 · high

Is it mine?

10 products

Check your exposure

Who says so?

7 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

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

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · security@apache.orgexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400USCWE-400USCWE-918US

affected products (10)

Products and version ranges known to be affected.

Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
IBM App Connect Enterpriseall versionscert_bundDEcpe:/a:ibm:app_connect_enterprise:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
IBM QRadar SIEM< 7.5.0 UP15 IF06cert_bundDE
Apache Software Foundation Apache Neethi0 → 3.2.2enisa_euvdEU
Apache Software Foundation Apache Neethi≤ 3.2.2fstec_bduRU
Axiom JDK Libercat EE Certified≤ 8.0.16-39fstec_bduRU
Axiom JDK Libercat EE Certified≤ 9.1.3-23fstec_bduRU
apache neethi< 3.2.2nvdUScpe:2.3:a:apache:neethi:*:*:*:*:*:*:*:*
Maven org.apache.neethi:neethi< 3.2.2osvUSpkg:maven/org.apache.neethi/neethi

advisories (5)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-2050IBM WebSphere Application Server und Application Server Liberty: Mehrere SchwachstellenDeutsch2026-06-23csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in IBM WebSphere Application Server Liberty und IBM WebSphere Application Server ausnutzen, um Dateien zu manipulieren, um einen Cross-Site Scripting Angriff durchzuführen, um beliebigen Programmcode auszuführen, um Informationen offenzulegen, und um einen Denial of Service Angriff durchzuführen.
WID-SEC-W-2026-2436Oracle Construction and Engineering: Mehrere SchwachstellenDeutsch2026-07-21csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Oracle Construction and Engineering ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
WID-SEC-W-2026-3043IBM QRadar SIEM: Mehrere SchwachstellenDeutsch2026-08-26csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in IBM QRadar SIEM ausnutzen, um Sicherheitsvorkehrungen zu umgehen, um seine Privilegien zu erhöhen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, um einen Cross-Site Scripting Angriff durchzuführen und um beliebigen Programmcode auszuführen.
GHSA-g36m-9g3m-2vmpApache Neethi is vulnerable to a Denial of Service attack through algorithmic complexity in policy normalization2026-05-01ghsa · osvUS
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.
CERTFR-2026-AVI-1378Multiples vulnérabilités dans les produits IBMFrançais2026-10-23vendor · certfrFR

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd osv certfr NVD CVE.org MITRE

published 2026-05-01modified 2026-10-26

references (5)

External citations — patches, advisories, analysis.

https://lists.apache.org/thread/p826j0phhmr9f83wzpmys1y0bdfrr2q4Patchcnnvd
https://nvd.nist.gov/vuln/detail/CVE-2026-42402 cnnvd
https://lists.apache.org/thread/p826j0phhmr9f83wzpmys1y0bdfrr2q4 enisa_euvd
http://www.openwall.com/lists/oss-security/2026/05/01/6Mailing ListThird Party Advisorynvd
https://lists.apache.org/thread/p826j0phhmr9f83wzpmys1y0bdfrr2q4Mailing ListVendor Advisorynvd

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