CVE-2026-27690

CRITICAL

HTTP Request Smuggling in SAP Approuter

Title source: cna
STIX 2.1

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.

Scores

CVSS v3 9.1
EPSS 0.0069
EPSS Percentile 49.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-444
Status published
Products (1)
SAP_SE/SAP Approuter SAP Approuter node.js package < 20.10.0
Published Jul 14, 2026
Tracked Since Jul 14, 2026