Allocation of Resources Without Limits or Throttling Affecting org.springframework.cloud:spring-cloud-function-context package, versions [,4.3.3)[5.0.0-M1, 5.0.2)
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- published10 May 2026
- disclosed8 May 2026
- creditUnknown
Introduced: 8 May 2026
NewCVE-2026-40989 (opens in a new tab)How to fix?
Upgrade org.springframework.cloud:spring-cloud-function-context to version 4.3.3, 5.0.2 or higher.
Overview
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling through the SimpleFunctionRegistry composition. An attacker can exhaust memory or trigger unbounded recursive function composition by supplying crafted function definitions that repeatedly compose the same functions through the catalog lookup path. This can grow the registry’s internal wrapper state without limit and drive the application into excessive memory use, degraded performance, or a crash.
Note: Fixes for earlier branches including 4.2.x, and 3.2.x are available under enterprise support.