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Medium, CVSS 5.7

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

CVE-2026-40990GHSA-x4h3-g2x4-8gqv

What to do

Partial vendor fix. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

Sources

  • GitHub Advisory Database and maintainer security advisories on GitHub

    GitHub-reviewed advisory GHSA-x4h3-g2x4-8gqv lists affected ranges: Maven org.springframework.cloud:spring-cloud-function-context >=4.3.0 =5.0.0 =3.2.10 =4.1.0 =4.2.0 <=4.2.5

    VerifiedObserved Structured GitHub Advisory Database record (type=reviewed) from the GitHub REST API.

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
5.7 · CVSS:3.1/AV:P/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:H
EPSS
  • CVE-2026-40990: 0.21% estimated exploitation activity in the next 30 days; percentile 11.42 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

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.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-x4h3-g2x4-8gqv

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2026-40990

Advisory: Spring Cloud Function Context: Uncontrolled Recursion is possible while attempting to add infinite amount of functions to Function Registry
IDs: CVE-2026-40990, GHSA-x4h3-g2x4-8gqv
Record: https://patchnext.com/advisories/cve-2026-40990 (revision 1, source checked 26 Oct 2026, 16:54 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.7)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Partial vendor fix; fixed versions by package: org.springframework.cloud:spring-cloud-function-context 5.0.2, 4.3.3. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.springframework.cloud:spring-cloud-function-context: affected >= 4.3.0, < 4.3.3; >= 5.0.0, < 5.0.2; >= 3.2.10, <= 3.2.15; >= 4.1.0, <= 4.1.9; >= 4.2.0, <= 4.2.5; fixed in 4.3.3, 5.0.2

## Suggested inspection (read-only)
- Maven org.springframework.cloud:spring-cloud-function-context: check the installed version with your package manager.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on org.springframework.cloud:spring-cloud-function-context.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-x4h3-g2x4-8gqv (GitHub-reviewed advisory GHSA-x4h3-g2x4-8gqv lists affected ranges: Maven org.springframework.cloud:spring-cloud-function-context >=4.3.0 =5.0.0 =3.2.10 =4.1.0 =4.2.0 <=4.2.5)

Commands are suggestions: review each one before running it.

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