HTTP Request Smuggling in SAP Approuter
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| SAP | SAP Approuter | SAP Approuter node.js package < 20.10.0 | — | No fix listed | CNA |
| — | @sap/approuter (npm) | before 20.10.0 | 20.10.0 | Patch available | GHSA-8m85-wqg7-c529 |
- SAP Approuter VendorSAP Affected SAP Approuter node.js package < 20.10.0 Fixed in — No fix listed CNA
- @sap/approuter (npm) Vendor— Affected before 20.10.0 Fixed in 20.10.0 Patch available GHSA-8m85-wqg7-c529
Remediation
- Fix · GHSA-8m85-wqg7-c529 @sap/approuter (npm) Fixed in 20.10.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-27690
- 2026-10-03 Alias added: GHSA-8m85-wqg7-c529
References
More SAP Approuter vulnerabilities
- TI-2026-32632 Open Redirect vulnerability in SAP Approuter CVSS 3.1HIGH 8.1
- TI-2026-41933 Multiple vulnerabilities in SAP Business AI Platform (Approuter) CVSS 3.1HIGH 7.0
- TI-2026-47423 Multiple vulnerabilities in SAP Business AI Platform (Approuter) CVSS 3.1MEDIUM 5.3
- TI-2026-47408 Multiple vulnerabilities in SAP Business AI Platform (Approuter) CVSS 3.1MEDIUM 6.4
- TI-2026-47422 Multiple vulnerabilities in SAP Business AI Platform (Approuter) CVSS 3.1MEDIUM 5.9
- TI-2026-41940 Multiple vulnerabilities in SAP Business AI Platform (Approuter) CVSS 3.1MEDIUM 5.9
Sources
- CVE-2026-27690 · CVE Program
- CVE-2026-27690 · NVD
- FIRST EPSS
- GHSA-8m85-wqg7-c529 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences