CVE-2026-2053

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.

CVSS v3.1 Score

8.3

HIGH

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

EPSS — Exploit Prediction

0.0022

Probability of exploitation

0.13%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Vendor	Product	Versions
wso2	api_manager	3.1.0 — 3.1.0.360
wso2	api_manager	3.2.0 — 3.2.0.465
wso2	api_manager	3.2.1 — 3.2.1.84
wso2	api_manager	4.0.0 — 4.0.0.385
wso2	api_manager	4.2.0 — 4.2.0.189

References

Advisories & Patches

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

Frequently Asked Questions

What is CVE-2026-2053? +

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. It has a CVSS v3.1 base score of 8.3 (HIGH).

How severe is CVE-2026-2053? +

CVE-2026-2053 has a CVSS v3.1 score of 8.3 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0022, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-2053? +

CVE-2026-2053 affects products from wso2, specifically: api_manager. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-2053? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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