Open Redirect vulnerability in SAP Approuter
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-601.
Summary
SAP Approuter does not properly validate incoming request headers during the OAuth2 login flow under certain configurations. This allows an unauthenticated remote attacker to craft a malicious link which, when clicked by a victim, could lead to unauthorized access. Successful exploitation results in a high impact to the confidentiality and integrity with no impact on the availability of the application.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- 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 < 21.2.0 | — | No fix listed | CNA |
| — | @sap/approuter (npm) | before 21.2.0 | 21.2.0 | Patch available | GHSA-44p5-3m5g-vfhj |
- SAP Approuter VendorSAP Affected SAP Approuter node.js package < 21.2.0 Fixed in — No fix listed CNA
- @sap/approuter (npm) Vendor— Affected before 21.2.0 Fixed in 21.2.0 Patch available GHSA-44p5-3m5g-vfhj
Remediation
- Fix · GHSA-44p5-3m5g-vfhj @sap/approuter (npm) Fixed in 21.2.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-44745
- 2026-10-03 Alias added: GHSA-44p5-3m5g-vfhj
References
More SAP Approuter vulnerabilities
- TI-2026-22067 HTTP Request Smuggling in SAP Approuter CVSS 3.1CRITICAL 9.1
- 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-2026-44745 · CVE Program
- CVE-2026-44745 · NVD
- FIRST EPSS
- GHSA-44p5-3m5g-vfhj · 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