CVE-2026-58240 PUBLISHED

Missing Authentication check in SAP NetWeaver (Message Server)

Assigner: sap
Reserved: 29.06.2026 Published: 08.09.2026 Updated: 08.09.2026

SAP NetWeaver Message Server does not sufficiently validate the authenticity of internal application server components during registration. An unauthenticated attacker with network access to the affected service could exploit this weakness to register an unauthorized component and potentially perform unauthorized actions within the application environment, resulting in a high impact on the confidentiality, integrity, and availability of the affected system.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 9.8

Product Status

Vendor SAP_SE
Product SAP NetWeaver (Message Server)
Versions Default: unaffected
  • Version KERNEL 9.16 is affected
  • Version 9.18 is affected
  • Version 9.19 is affected
  • Version 9.20 is affected

References

Problem Types