What is CVE-2026-44745?

CVE-2026-44745 is a high-severity vulnerability in SAP Approuter, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 8.1/10. Published 2026-07-14.

How severe is CVE-2026-44745?

High severity. CVSS v3 base score is 8.1 out of 10.

Open Redirect in SAP Approuter

CVE-2026-44745

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.

Vulnerability class: Open Redirect

Published 2026-07-14 · last modified 2026-09-08.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.005 (39.3th percentile), scored 2026-10-22.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

SAP Approuter
SAP Se Approuter — versions SAP Approuter node.js package < 21.2.0

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

References

me.sap.com/notes/3741519 (Permissions Required)
url.sap/sapsecuritypatchday (Vendor Advisory)

Frequently asked questions

What is CVE-2026-44745?: CVE-2026-44745 is a high-severity vulnerability in SAP Approuter, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 8.1/10. Published 2026-07-14.
How severe is CVE-2026-44745?: High severity. CVSS v3 base score is 8.1 out of 10.