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GHSA-7469-8H9R-C5XC

Vulnerability from github – Published: 2026-07-06 12:31 – Updated: 2026-07-06 12:31

Details

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.

Severity

8.6 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

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  "aliases": [
    "CVE-2026-4249"
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    "cwe_ids": [
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-06T11:16:30Z",
    "severity": "HIGH"
  },
  "details": "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.\n\nSuccessful 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.",
  "id": "GHSA-7469-8h9r-c5xc",
  "modified": "2026-07-06T12:31:30Z",
  "published": "2026-07-06T12:31:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4249"
    },
    {
      "type": "WEB",
      "url": "https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2026-5236"
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      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-4249 (GCVE-0-2026-4249)

Vulnerability from cvelistv5 – Published: 2026-07-06 10:16 – Updated: 2026-07-06 11:03

Title

Denial of Service via Malicious JSON Payloads in Throttling Events in Multiple WSO2 Products Causing Persistent Service Disruption

Summary

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.

Severity

8.6 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-707 - Use of Out-of-Scope Validation

Assigner

WSO2

References

1 reference

URL	Tags
https://security.docs.wso2.com/en/latest/security…	vendor-advisory

Impacted products

4 products

Vendor	Product	Version
WSO2	WSO2 Universal Gateway	Affected: 4.5.0 , < 4.5.0.54 (custom) Affected: 4.6.0 , < 4.6.0.18 (custom) Affected: 4.7.0 , < 4.7.0.2 (custom)
WSO2	WSO2 Traffic Manager	Affected: 4.5.0 , < 4.5.0.53 (custom) Affected: 4.6.0 , < 4.6.0.18 (custom) Affected: 4.7.0 , < 4.7.0.2 (custom)
WSO2	WSO2 API Control Plane	Affected: 4.5.0 , < 4.5.0.55 (custom) Affected: 4.6.0 , < 4.6.0.19 (custom) Affected: 4.7.0 , < 4.7.0.2 (custom)
WSO2	WSO2 API Manager	Unknown: 0 , < 3.2.0 (custom) Affected: 3.2.0 , < 3.2.0.470 (custom) Affected: 3.2.1 , < 3.2.1.89 (custom) Affected: 4.0.0 , < 4.0.0.390 (custom) Affected: 4.1.0 , < 4.1.0.254 (custom) Affected: 4.2.0 , < 4.2.0.194 (custom) Affected: 4.3.0 , < 4.3.0.105 (custom) Affected: 4.4.0 , < 4.4.0.69 (custom) Affected: 4.5.0 , < 4.5.0.54 (custom) Affected: 4.6.0 , < 4.6.0.18 (custom) Affected: 4.7.0 , < 4.7.0.2 (custom)

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JSON

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-7469-8H9R-C5XC

CVE-2026-4249 (GCVE-0-2026-4249)

Tags

Sightings

Nomenclature