How severe is CVE-2026-40989?

CVE-2026-40989 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over physical access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability high.

Is CVE-2026-40989 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-40989?

CVE-2026-40989 affects Vmware Spring Cloud Function. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-40989?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-40989 have an EU (EUVD) identifier?

Yes. CVE-2026-40989 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33733.

When was CVE-2026-40989 published?

CVE-2026-40989 was published on 2026-06-01 and last updated on 2026-06-17.

CVE-2026-40989

CVE-2026-40989 is a medium-severity vulnerability in Vmware Spring Cloud Function with a CVSS 3.x base score of 5.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-674.

Key facts

Severity: Medium (CVSS 3.x base score 5.7)
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-33733
Weakness: CWE-674
Affected product: Vmware Spring Cloud Function
Published: 2026-06-01
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-40989?: 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.
How severe is CVE-2026-40989?: CVE-2026-40989 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over physical access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability high.
Is CVE-2026-40989 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-40989?: CVE-2026-40989 affects Vmware Spring Cloud Function. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-40989?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-40989 have an EU (EUVD) identifier?: Yes. CVE-2026-40989 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33733.
When was CVE-2026-40989 published?: CVE-2026-40989 was published on 2026-06-01 and last updated on 2026-06-17.

References

https://spring.io/security/cve-2026-40989

Affected products (1)

cpe:2.3:a:vmware:spring_cloud_function:*:*:*:*:*:*:*:*

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