CVE-2026-27690

HTTP Request Smuggling in SAP Approuter

Published Jul 14, 2026 CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-8m85-wqg7-c529 SAP Approuter Vulnerable to HTTP Request Smuggling
History
Type Values Removed Values Added
First Time appeared Sap
Sap approuter
CPEs cpe:2.3:a:sap:approuter:*:*:*:*:*:node.js:*:*
Vendors & Products Sap
Sap approuter
Type Values Removed Values Added
First Time appeared Sap Se
Sap Se sap Approuter
Vendors & Products Sap Se
Sap Se sap Approuter
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title HTTP Request Smuggling in SAP Approuter
Weaknesses CWE-444
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
sap
Published
Updated
Jul 14, 2026, 12:46 PM
Reserved
Feb 23, 2026, 5:50 PM
Status
Analyzed
Published
Jul 14, 2026, 1:16 AM
Modified
Oct 24, 2026, 10:10 PM