CVE-2026-40990: Spring Cloud Function Context: Uncontrolled Recursion is possible while attempting to add infinite amount of functions to Function Registry

June 1, 2026 (updated July 9, 2026)

OOM error is possible while attempting to add infinite amount of functions to Function Registry.

Affected Spring Products and Versions: Spring Cloud Function 3.2.x: versions prior to 3.2.16 Spring Cloud Function 4.1.x: versions prior to 4.1.10 Spring Cloud Function 4.2.x: versions prior to 4.2.6 Spring Cloud Function 4.3.x: versions prior to 4.3.3 Spring Cloud Function 5.0.x: versions prior to 5.0.2 Older, unsupported versions are also affected.

References

github.com/advisories/GHSA-x4h3-g2x4-8gqv
nvd.nist.gov/vuln/detail/CVE-2026-40990
spring.io/security/cve-2026-40990

Code Behaviors & Features

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