Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-4249

36
FAUCET Score

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.

First published: Jul 6, 2026Last modified: Jul 6, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.5.0, < 4.5.0.55CPE matchmatch criteria
cpe:2.3:a:wso2:api_control_plane:*:*:*:*:*:*:*:*
>= 4.6.0, < 4.6.0.19CPE matchmatch criteria
cpe:2.3:a:wso2:api_control_plane:*:*:*:*:*:*:*:*
>= 4.0.0, < 4.0.0.390CPE matchmatch criteria
cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:*
>= 4.1.0, < 4.1.0.254CPE matchmatch criteria
cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:*
>= 4.2.0, < 4.2.0.194CPE matchmatch criteria
cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.6HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.34%
Probability of exploitation in next 30 days
EPSS Percentile
26.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0034 is in the 8th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

security.docs.wso2.com / en/latest/security-announcements/security-advisories/2026/WSO2-2026-5236
Vendor Advisory