How severe is CVE-2026-47856?

CVE-2026-47856 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-47856 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-47856?

CVE-2026-47856 affects Vmware Spring Integration. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-47856?

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

When was CVE-2026-47856 published?

CVE-2026-47856 was published on 2026-08-27 and last updated on 2026-09-04.

CVE-2026-47856

CVE-2026-47856 is a medium-severity vulnerability in Vmware Spring Integration with a CVSS 3.x base score of 6.3. 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-502.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Vmware Spring Integration
Published: 2026-08-27
Last modified: 2026-09-04

Description

Spring Integration's JSON to object conversion uses the json__TypeId__ header to choose the deserialization target type, and resolves that header value to a class with ClassUtils.forName and no type/package allow-list. Spring Integration 7.1.0 Spring Integration 7.0.0 - 7.0.5 Spring Integration 6.5.0 - 6.5.10 Spring Integration 6.4.0 - 6.4.12 Spring Integration 5.5.21 and earlier

Frequently asked questions

What is CVE-2026-47856?: Spring Integration's JSON to object conversion uses the json__TypeId__ header to choose the deserialization target type, and resolves that header value to a class with ClassUtils.forName and no type/package allow-list. Spring Integration 7.1.0 Spring Integration 7.0.0 - 7.0.5 Spring Integration 6.5.0 - 6.5.10 Spring Integration 6.4.0 - 6.4.12 Spring Integration 5.5.21 and earlier
How severe is CVE-2026-47856?: CVE-2026-47856 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-47856 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-47856?: CVE-2026-47856 affects Vmware Spring Integration. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-47856?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-47856 published?: CVE-2026-47856 was published on 2026-08-27 and last updated on 2026-09-04.

References

https://spring.io/security/cve-2026-47856

Affected products (1)

cpe:2.3:a:vmware:spring_integration:*:*:*:*:*:*:*:*

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