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In Spring Cloud Function versions 3.1.6, 3.2.2 and older unsupported versions, when using routing functionality it is possible for a user to provide a specially crafted SpEL as a routing-expression that may result in remote code execution and access to local resources.
Users of affected versions should upgrade to 3.1.7, 3.2.3. No other steps are necessary. Releases that have fixed this issue include:
This vulnerability was initially discovered and responsibly reported by m09u3r.