The CVE identifier CVE-2026-26298 was reserved by Fortinet but subsequently rejected, indicating that the vulnerability report did not meet the criteria for inclusion in the CVE list or was determined to be invalid or duplicate. No technical details, affected product versions, or exploit information have been published. The lack of a CVSS score and absence of patch or mitigation guidance further suggest that this is not a confirmed vulnerability. Without concrete data, it is impossible to analyze attack vectors, impact, or exploitation methods. The rejection status typically means the issue either does not exist, is not security relevant, or was addressed through other means.

Since CVE-2026-26298 is rejected and no technical details or affected products are identified, there is no known impact on confidentiality, integrity, or availability. European organizations are not at risk from this non-existent or invalid vulnerability. No operational or security impact can be assessed in the absence of further information.

No specific mitigation recommendations can be provided due to the lack of a valid vulnerability or threat information. Organizations should continue to follow standard security best practices and maintain up-to-date patching for their Fortinet products and other infrastructure. Monitoring official advisories from Fortinet and trusted vulnerability databases remains essential to respond promptly to legitimate threats.