CVE-2026-62418 Apache Software Foundation CVE debrief

Who should care

Users of Apache Syncope versions 3.0.0-M0 through 3.0.16, 4.0.0-M0 through 4.0.6, and 4.1.0-M0 through 4.1.1 should be aware of this SSRF vulnerability and take steps to upgrade to a patched version. This includes operators, platform administrators, vulnerability management teams, and security teams who need to assess the risk and implement necessary mitigations.

Technical summary

The CVE-2026-62418 vulnerability is a Server-Side Request Forgery (SSRF) issue in Apache Syncope. It is caused by a lack of proper validation in the Connectors and Resources check. An attacker with low privileges and authenticated access could potentially exploit this vulnerability. The CVSS score for this vulnerability is 8.1, indicating a high severity level. The vulnerability affects Apache Syncope versions from 3.0.0-M0 through 3.0.16, 4.0.0-M0 through 4.0.6, and 4.1.0-M0 through 4.1.1. Users are recommended to upgrade to version 4.0.7 or 4.1.2 to mitigate this issue.

Defensive priority

High priority should be given to upgrading Apache Syncope to version 4.0.7 or 4.1.2. In the meantime, users can consider implementing additional monitoring and access controls to mitigate the risk of SSRF attacks. Defenders should review and restrict access to Connectors and Resources checks, and track exceptions, retest remediated assets, and close the item only after evidence is documented.

Recommended defensive actions

• Upgrade Apache Syncope to version 4.0.7 or 4.1.2
• Implement additional monitoring and access controls to detect and prevent SSRF attacks
• Review and restrict access to Connectors and Resources checks
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record was published on 2026-07-20T15:16:44.983Z and was last modified on 2026-07-21T16:17:19.640Z. The NVD entry is currently Undergoing Analysis. Limited information is available about the specific details of the vulnerability. The CVE-2026-62418 vulnerability is a Server-Side Request Forgery (SSRF) issue in Apache Syncope. Evidence of exploitation is not currently available, and defenders should verify the affected systems and implement mitigations.

Official resources