CVE-2026-109189: fit2cloud MeterSphere Swagger3 Swagger3ParserApiDefinition.java Swagger3ParserApiDefinition.testUrlTimeout server-side request forgery
A vulnerability was detected in fit2cloud MeterSphere up to 3.6.9-lts. The affected element is the function Swagger3ParserApiDefinition.testUrlTimeout of the file backend/parser/api/dataimport/Swagger3ParserApiDefinition.java of the component Swagger3 Parser. Performing a manipulation of the argument swaggerUrl results in server-side request forgery. Remote exploitation of the attack is possible. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Affected Software
Event History
Frequently Asked Questions
Which MeterSphere deployments should be treated as affected?
FIT2CLOUD MeterSphere versions up to and including 3.6.9-lts are identified as affected. The vulnerable functionality is the Swagger3 Parser component's handling of the swaggerUrl argument.
What access does an attacker need to exploit this issue?
The CVSS vector indicates network access and low privileges are required, with no user interaction. Exploitation involves manipulating the swaggerUrl argument supplied to the affected parser function.
Is exploitation practical or only theoretical?
Remote exploitation is described as possible, and a public exploit is available. The issue has a CVSS severity of medium, with potential low-impact effects on confidentiality, integrity, and availability.
Has the vendor provided a fix or workaround?
The available information does not provide a fixed version or workaround. It states that the vendor was contacted early in the disclosure process but did not respond.