CVE-2026-4249

highpriority · track · 0EPSS 0.006 · 46 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.56% (46th) EPSS

CVSS 8.6 · high

Is it mine?

33 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · cert_bund

EPSS · scored 2026-10-23

The throttling event handling mechanism in multiple WSO2 products accepts user-supplied JSON payloads without sufficient validation of their structure and content. This allows an unauthenticated remote attacker to inject malicious JSON data that can lead to a persistent denial of service condition. Successful exploitation of this vulnerability can disrupt the API Gateway, preventing legitimate API traffic from being processed and impacting complete service availability. The denial of service is persistent, requiring manual intervention to restore normal operations.

cvss

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

8.6

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · ENISA EU

v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondaryexploitability 3.9 · impact 4

v3.17.9highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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-707US

affected products (33)

Products and version ranges known to be affected.

Open Source WSO2 API Managerall versionscert_bundDEcpe:/a:wso2:api_manager:-
WSO2 WSO2 API Control Plane4.5.0 → 4.5.0.55enisa_euvdEU
WSO2 WSO2 API Control Plane4.6.0 → 4.6.0.19enisa_euvdEU
WSO2 WSO2 API Control Plane4.7.0 → 4.7.0.2enisa_euvdEU
WSO2 WSO2 API Manager3.2.0 → 3.2.0.470enisa_euvdEU
WSO2 WSO2 API Manager3.2.1 → 3.2.1.89enisa_euvdEU
WSO2 WSO2 API Manager4.0.0 → 4.0.0.390enisa_euvdEU
WSO2 WSO2 API Manager4.1.0 → 4.1.0.254enisa_euvdEU
WSO2 WSO2 API Manager4.2.0 → 4.2.0.194enisa_euvdEU
WSO2 WSO2 API Manager4.3.0 → 4.3.0.105enisa_euvdEU
WSO2 WSO2 API Manager4.4.0 → 4.4.0.69enisa_euvdEU
WSO2 WSO2 API Manager4.5.0 → 4.5.0.54enisa_euvdEU
WSO2 WSO2 API Manager4.6.0 → 4.6.0.18enisa_euvdEU
WSO2 WSO2 API Manager4.7.0 → 4.7.0.2enisa_euvdEU
WSO2 WSO2 Traffic Manager4.5.0 → 4.5.0.53enisa_euvdEU
WSO2 WSO2 Traffic Manager4.6.0 → 4.6.0.18enisa_euvdEU
WSO2 WSO2 Traffic Manager4.7.0 → 4.7.0.2enisa_euvdEU
WSO2 WSO2 Universal Gateway4.5.0 → 4.5.0.54enisa_euvdEU
WSO2 WSO2 Universal Gateway4.6.0 → 4.6.0.18enisa_euvdEU
WSO2 WSO2 Universal Gateway4.7.0 → 4.7.0.2enisa_euvdEU

showing 20 of 33

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-2085WSO2 API Manager: Mehrere SchwachstellenDeutsch2026-06-25csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in WSO2 API Manager ausnutzen, um Sicherheitsvorkehrungen zu umgehen, um einen Denial of Service Angriff durchzuführen, um seine Privilegien zu erhöhen, um beliebigen Programmcode auszuführen, um einen SQL-Injection Angriff durchzuführen, um einen Cross-Site Scripting Angriff durchzuführen, um Informationen offenzulegen, und um Daten zu manipulieren.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund NVD CVE.org MITRE

published 2026-07-06modified 2026-07-09

references (3)

External citations — patches, advisories, analysis.

scry

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