CVE-2026-40989: Spring Cloud Function Context has Uncontrolled Recursion

June 1, 2026 (updated July 9, 2026)

Under infinite recursion in the routing layer, request-handling can cause OOM error.

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-x9c7-5h6g-hq8q
github.com/spring-cloud/spring-cloud-function/commit/6bcd55803c5a2ce0adec794fee1e03c2fac36cf9
nvd.nist.gov/vuln/detail/CVE-2026-40989
spring.io/security/cve-2026-40989

Code Behaviors & Features

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