Is CVE-2026-27690 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-27690?

CVE-2026-27690 has a CVSS v3 severity of CRITICAL (9.1).

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CVE-2026-27690

Description

Due to an HTTP Request Smuggling vulnerability in SAP Approuter, an unauthenticated attacker could send a specially crafted HTTP request that leads to request-response desynchronization. This could result in the exposure of user responses and cause the system to become unavailable. This leads to a high impact on confidentiality and availability.