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Medium 5.3Published May 11, 2026

CVE-2025-8154HTTP Header Injection via Webhook API in Multiple WSO2 Products Allows Response Header Manipulation

Updated under an hour ago ()

Does this affect you?

It affects WSO2 API Manager and 5 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

In Webhook API invocations, the component accepts user-supplied input for HTTP request headers without sufficient validation or sanitization, allowing these headers to be injected into HTTP responses. By exploiting this vulnerability, a malicious actor can inject or overwrite arbitrary HTTP response headers. This can lead to various adverse effects, including the manipulation of browser caching, alteration of security-related headers, and the injection of sensitive information such as cookie values, potentially enabling session hijacking or other malicious activities.

CVSS
5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness (CWE)
CWE-74
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
WSO2
NVD analysis
Analyzed
Record last updated
May 11, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
WSO2 WSO2 API Manager
wso2:api_manager (from the name)
before 4.1.0 status unknown; from 4.1.0 before 4.1.0.218; from 4.2.0 before 4.2.0.164; from 4.3.0 before 4.3.0.74; from 4.4.0 before 4.4.0.38; from 4.5.0 before 4.5.0.20
CNA record
WSO2 WSO2 Universal Gateway
wso2:universal_gateway (from the name)
from 4.5.0 before 4.5.0.19
CNA record
WSO2 WSO2 Traffic Manager
wso2:traffic_manager (from the name)
from 4.5.0 before 4.5.0.19
CNA record
WSO2 WSO2 API Control Plane
wso2:api_control_plane (from the name)
from 4.5.0 before 4.5.0.21
CNA record
WSO2 WSO2 Carbon API Gateway
wso2:carbon_api_gateway (from the name)
from 9.20.74 before 9.20.74.374; from 9.28.116 before 9.28.116.363; from 9.29.120 before 9.29.120.181; from 9.30.67 before 9.30.67.104; from 9.31.86 before 9.31.86.64; from 9.32.2 not affected
CNA record
WSO2 WSO2 Carbon API Management Implementation
wso2:carbon_api_management_implementation (from the name)
from 9.20.74 before 9.20.74.374; from 9.28.116 before 9.28.116.363; from 9.29.120 before 9.29.120.181; from 9.30.67 before 9.30.67.104; from 9.31.86 before 9.31.86.64; from 9.32.2 not affected
CNA record
wso2 api_control_plane
wso2:api_control_plane
from 4.5.0 before 4.5.0.21
NVD
wso2 api_manager
wso2:api_manager
from 4.1.0 before 4.1.0.218; from 4.2.0 before 4.2.0.164; from 4.3.0 before 4.3.0.74; from 4.4.0 before 4.4.0.38; from 4.5.0 before 4.5.0.20
NVD
wso2 traffic_manager
wso2:traffic_manager
from 4.5.0 before 4.5.0.19
NVD
wso2 universal_gateway
wso2:universal_gateway
from 4.5.0 before 4.5.0.19
NVD

References

  • vendor-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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