CVE-2026-23686 CRLF Injection vulnerability in SAP NetWeaver Application Server Java

What is CVE-2026-23686?

CVE-2026-23686 is a low-severity vulnerability in Sap Netweaver Application Server Java, published on 10 Feb 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

Due to a CRLF Injection vulnerability in SAP NetWeaver Application Server Java, an authenticated attacker with administrative access could submit specially crafted content to the application. If processed by the application, this content enables injection of untrusted entries into generated configuration, allowing manipulation of application-controlled settings. Successful exploitation leads to a low impact on integrity, while confidentiality and availability remain unaffected.

Weakness: CWE-436, CWE-113

Which versions are affected by CVE-2026-23686?

It affects 1 product.

Products include Sap Netweaver Application Server Java.

How do I fix CVE-2026-23686?

No fix has been published for CVE-2026-23686 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-23686 being exploited?

There is no known exploitation of CVE-2026-23686 in the wild and no public exploit code.

Other vulnerabilities in Sap Netweaver Application Server Java

• CVE-2020-6287 SAP NetWeaver Missing Authentication for Critical Function Exploited Critical 10.0
• CVE-2010-5326 SAP NetWeaver Remote Code Execution Exploited Critical 10.0
• CVE-2016-2386 SAP NetWeaver SQL Injection Exploited Critical 9.8
• CVE-2017-12637 SAP NetWeaver Directory Traversal Exploited High 7.5
• CVE-2016-3976 SAP NetWeaver Directory Traversal Exploited High 7.5

All Sap Netweaver Application Server Java vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-9c7v-cw9q-4fpc.