CVE-2026-27685 Insecure Deserialization in SAP NetWeaver Enterprise Portal Administration
Privileged users can trigger insecure deserialization by uploading malicious content, leading to high impact on system confidentiality, integrity, and availability.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-27685?
CVE-2026-27685 is a critical unsafe deserialization vulnerability in SAP_SE SAP NetWeaver Enterprise Portal Administration, published on 10 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
SAP NetWeaver Enterprise Portal Administration is vulnerable if a privileged user uploads untrusted or malicious content that, upon deserialization, could result in a high impact on the confidentiality, integrity, and availability of the host system.
Weakness: CWE-502
Which versions are affected by CVE-2026-27685?
How do I fix CVE-2026-27685?
No fix has been published for CVE-2026-27685 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2026-27685 being exploited?
There is no known exploitation of CVE-2026-27685 in the wild and no public exploit code.
Sources
Also known as GHSA-8cwx-3wjm-cxxv.