PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-47864 Spring CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-27T06:17:17.017Z and has not been modified since then. The NVD entry is currently Analyzed. This vulnerability involves insecure deserialization in Spring Integration's SerializingHttpMessageConverter, allowing remote, unauthenticated attackers to potentially achieve arbitrary code execution if certain 'gadget' classes are present on the classpath. Affected versions include Spring Integration 5.5.21 and earlier, 6.4.0-6.4.12, 6.5.0-6.5.10, 7.0.0-7.0.5, and 7.1.0. Organizations should review their inventory of Spring Integration usage, apply patches, and implement compensating controls. The vulnerability is exploitable via HTTP requests with a Content-Type of application/x-java-serialized-object.

Vendor
Spring
Product
Spring Integration
CVSS
MEDIUM 6.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-27
Original CVE updated
2026-09-02
Advisory published
2026-08-27
Advisory updated
2026-09-02

Who should care

Organizations using Spring Integration, especially those with exposed HTTP endpoints, should be aware of this vulnerability and take steps to mitigate it. This includes reviewing their inventory of Spring Integration usage, applying patches, and implementing compensating controls.

Technical summary

The SerializingHttpMessageConverter in Spring Integration deserializes incoming HTTP request bodies with a raw java.io.ObjectInputStream and no class filtering. This allows for insecure deserialization of objects, potentially leading to remote code execution if certain 'gadget' classes are present on the classpath. The vulnerability is exploitable via HTTP requests with a Content-Type of application/x-java-serialized-object.

Defensive priority

Organizations using affected Spring Integration versions should prioritize patching to prevent potential code execution.

Recommended defensive actions

  • Inventory and assess Spring Integration usage within the organization
  • Apply patches or updates to affected Spring Integration versions
  • Implement compensating controls such as Web Application Firewalls
  • Monitor for suspicious HTTP requests
  • Perform regular vulnerability scans and penetration testing

Evidence notes

The CVE-2026-47864 vulnerability involves insecure deserialization in Spring Integration's SerializingHttpMessageConverter. A remote, unauthenticated attacker could exploit this by sending a specially crafted HTTP request with a Content-Type of application/x-java-serialized-object, potentially leading to arbitrary code execution if certain 'gadget' classes are present on the classpath. Affected versions include Spring Integration 5.5.21 and earlier, 6.4.0-6.4.12, 6.5.0-6.5.10, 7.0.0-7.0.5, and 7.1.0.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-47864 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-47864

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-47864 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-47864

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.