CVE-2026-2818 VMware CVE debrief

Who should care

Security teams and administrators responsible for Spring Data Geode deployments, especially on Windows OS, should be aware of this vulnerability. They should assess their exposure and apply necessary patches or mitigations to prevent potential attacks. Additionally, defenders should review their inventory of affected systems and prioritize remediation efforts based on the CVSS score and potential impact.

Technical summary

CVE-2026-2818 is a zip-slip path traversal vulnerability in Spring Data Geode's import snapshot functionality. The vulnerability allows attackers to write files outside the intended extraction directory, potentially leading to code execution or data tampering. The vulnerability appears to be susceptible on Windows OS only. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N, indicating a high severity. The weakness is classified as CWE-22 and CWE-23.

Defensive priority

High priority should be given to patching or mitigating this vulnerability, especially in Windows OS environments. Defenders should review their system inventory and apply necessary patches or compensating controls to prevent potential attacks.

Recommended defensive actions

• Assess exposure and apply necessary patches or mitigations
• Review system inventory and prioritize remediation efforts
• Implement compensating controls to prevent potential attacks
• Monitor system logs for suspicious activity
• Verify vendor remediation workflow and apply fixes

Evidence notes

The CVE-2026-2818 vulnerability has a high CVSS score of 8.2 and is classified as HIGH. The vulnerability appears to be susceptible on Windows OS only. The vendor and product information is not available. There are several references to Red Hat and Herodevs, including a detailed description of the vulnerability and its impact.

Official resources