CVE-2026-2053

Unauthenticated Server-Side Request Forgery via WS-Addressing in WSO2 API Manager

State: Published
Severity: 8.3 High
Published: Jun 26, 2026
Updated: Jun 26, 2026
Reserved: Feb 6, 2026

Description

The WSO2 API Manager's message flow component, when processing WS-Addressing headers, does not sufficiently validate or restrict user-controlled input within these headers. This omission allows an attacker to manipulate WS-Addressing headers to specify arbitrary destinations for server-initiated requests.

Successful exploitation allows an unauthenticated attacker to control the destination of server-initiated requests originating from the WSO2 API Manager. This direct control can enable unauthorized access to internal network resources or services that would typically be inaccessible from external networks.

Scores

CVSS	Score	Vector	Source
3.1	8.3 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L	WSO2

Weaknesses

CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Product	Versions
WSO2 API ManagerWSO2	before 3.1.0Unknown 3.1.0 to before 3.1.0.360Affected 3.2.0 to before 3.2.0.465Affected 3.2.1 to before 3.2.1.84Affected 4.0.0 to before 4.0.0.385Affected 4.2.0 to before 4.2.0.189Affected

References

https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2026-5072/vendor-advisory

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