CVE-2026-40990

Unbounded cache for function definitions

State: Published
Severity: 5.7 Medium
Published: Jun 1, 2026
Updated: Jun 1, 2026
Reserved: Apr 16, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	5.7 Medium	CVSS:3.1/AV:P/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:H	vmware

Weaknesses

CWE-770 Allocation of Resources Without Limits or Throttling

Affected Products

Product	Versions
Spring Cloud FunctionSpring	3.2.0 to before 3.2.16Affected 4.1.0 to before 4.1.10Affected 4.2.0 to before 4.2.6Affected 4.3.0 to before 4.3.3Affected 5.0.0 to before 5.0.2Affected

References

https://spring.io/security/cve-2026-40990

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