CVE-2026-44745: Open Redirect vulnerability in SAP Approuter

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-14 · updated 2026-10-24
Weakness: CWE-601

Description

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.

Affected products

SAP_SE SAP Business AI Platform (Approuter): before 21.2.0 — fixed in 21.2.0

How to fix

Upgrade to a fixed version: SAP_SE SAP Business AI Platform (Approuter) 21.2.0. Check the vendor advisory for mitigations.

References

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