CVE-2026-47894 Spring CVE debrief

Who should care

VMware Spring Cloud Config users, security teams monitoring for configuration file exposure, and teams responsible for patching and vulnerability management should be aware of this vulnerability. They need to review and apply vendor-provided patches, restrict access to configuration files, and monitor for unusual configuration file access patterns. Security teams should also verify inventory of Spring Cloud Config instances, implement compensating controls for sensitive configuration data, and track exceptions.

Technical summary

CVE-2026-47894 is a medium-severity vulnerability in VMware Spring Cloud Config Server's native environment repository. It allows exposure of configuration files outside of the configured repository path. Affected versions include Spring Cloud Config 5.0.0 - 5.0.4, 4.3.0 - 4.3.4, 4.0.0 - 4.2.8, and 3.1.14 and earlier. The vulnerability has a CVSS score of 4.9. Security teams should focus on validating affected scope, reviewing compensating controls, and tracking exceptions. VMware Spring Cloud Config users need to review and apply patches, restrict configuration file access, and monitor for suspicious activity.

Defensive priority

Medium-severity vulnerability in VMware Spring Cloud Config, requiring prompt defensive review.

Recommended defensive actions

• Review and apply vendor-provided patches for affected Spring Cloud Config versions.
• Restrict access to configuration files and repository paths.
• Monitor for unusual configuration file access patterns.
• Verify inventory of Spring Cloud Config instances and their versions.
• Implement compensating controls for sensitive configuration data.
• Review relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

Official CVE Program and NVD records confirm CVE-2026-47894 vulnerability in VMware Spring Cloud Config. Vendor advisory available. Limited evidence of exploitation or ransomware use. Security teams should verify inventory of Spring Cloud Config instances, monitor for unusual configuration file access patterns, and implement compensating controls for sensitive configuration data. Defenders should focus on validating affected scope, reviewing compensating controls, and tracking exceptions.

Sources and 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.