CVE-2026-89126: SAP Web Dispatcher input validation memory corruption

CVE-2026-89126 · Severity: critical · CVSS 10 · Published 2026-11-10

SAP Web Dispatcher is a gateway component that routes and filters network traffic for SAP applications. An unauthenticated attacker can send specially crafted network packets to trigger a memory corruption vulnerability, allowing arbitrary code execution and complete compromise of the system including confidentiality, integrity, and availability.

Technologies: SAP Web Dispatcher. Vendors: SAP.

Quick answers

Is CVE-2026-89126 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-89126 being exploited in the wild.
How severe is CVE-2026-89126?
Critical severity, with a CVSS score of 10, published 10 November 2026.
Which products and versions are affected?
SAP Web Dispatcher <UNKNOWN>.
Is there a fix for CVE-2026-89126?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-89126 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-89126?
Check whether you run SAP Web Dispatcher at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability stems from insufficient input validation in an internal component of SAP Web Dispatcher that processes network traffic. An unauthenticated attacker can exploit this via network-based delivery to trigger memory corruption. Successful exploitation results in arbitrary code execution with no authentication or user interaction required.

Affected products

  • SAP Web Dispatcher <UNKNOWN>

Timeline

  • 2026-11-10: advisory

References

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