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Vulnerability record · CVE-2026-66775 · published 11 August 2026

CVE-2026-66775: Sap approuter cross-site request forgery vulnerability

Sap · Approuter

SAP Approuter does not enforce cross-site request forgery protection on the authentication flow by default. An unauthenticated attacker could craft a malicious link and trick a victim into following it. Successful exploitation could allow the attacker to bind the victim's session to an attacker-controlled identity, resulting in a low impact on integrity. There is no impact on confidentiality and availability.

4.3 CVSS 3.1 Medium EPSS 0.17% · top 94.8% CWE-352 · Cross-site request forgery
4.3CVSS 3.1 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
8 Sep 2026Last modified by NVD

Description

SAP Approuter does not enforce cross-site request forgery protection on the authentication flow by default. An unauthenticated attacker could craft a malicious link and trick a victim into following it. Successful exploitation could allow the attacker to bind the victim's session to an attacker-controlled identity, resulting in a low impact on integrity. There is no impact on confidentiality and availability.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://me.sap.com/notes/3786038 Permissions Required
https://url.sap/sapsecuritypatchday Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.1CVE-2026-27690Sap approuter http request smuggling vulnerabilityDue to an HTTP Request Smuggling vulnerability in SAP Approuter, an unauthenticated attacker could send a specially crafted HTTP request that leads t…EPSS 0.68%8.1CVE-2026-44745Sap approuter open redirect vulnerabilitySAP Approuter does not properly validate incoming request headers during the OAuth2 login flow under certain configurations. This allows an unauthent…EPSS 0.47%7.0CVE-2026-58230Sap approuter open redirect vulnerabilitySAP Approuter does not sufficiently validate certain token content under specific configurations. An unauthenticated attacker could send a specially …EPSS 0.31%6.4CVE-2026-66760Sap approuter improper certificate validation vulnerabilitySAP Approuter does not correctly validate client certificates in certain callback flows. An attacker with low privileges, holding a certificate from …EPSS 0.18%5.9CVE-2026-66776Sap approuter improper verification of cryptographic signature vulnerabilitySAP Approuter does not consistently enforce integrity verification on certain session-related request headers under specific conditions. An attacker …EPSS 0.20%5.9CVE-2026-66777Sap approuter path traversal vulnerabilitySAP Approuter does not sufficiently validate certain incoming requests before forwarding them to backend destinations. Due to the complexity of the r…EPSS 0.44%5.9CVE-2026-58238Sap approuter allocation without limits vulnerabilitySAP Approuter does not sufficiently handle certain requests under specific conditions. An unauthenticated attacker could send specially crafted input…EPSS 0.43%5.9CVE-2026-58237Sap approuter missing authorization vulnerabilityWebSocket of SAP Approuter does not perform sufficient authorization checks in certain functionality. An attacker with low privileges could exploit t…EPSS 0.28%

Source: NIST National Vulnerability Database (record CVE-2026-66775), CISA KEV, FIRST EPSS (scores of 2026-10-07). This page is refreshed as NVD updates the record.