by Kastro
Paper/Archive/CVE-2026-27690

CVE-2026-27690

SAP_SE SAP Approuter — HTTP Request Smuggling in SAP Approuter

EPSS 0.7%CVSS 9.1
critical.is priorityof 100
38
CVSS 9.1 (CNA)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 52.5.525 × 2010.5No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
SAP ApprouterSAP Approuter node.js package < 20.10.0–CNA

Scores by source

sap (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refme.sap.com/notes/3720138refurl.sap/sapsecuritypatchday