CVE-2026-24186 Deserialization in FLARE SDK
An attacker can execute arbitrary code by sending a malicious FOBS-encoded message to the NVIDIA FLARE SDK.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-24186?
CVE-2026-24186 is a high-severity unsafe deserialization vulnerability in NVIDIA FLARE SDK, published on 28 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
NVIDIA FLARE SDK contains a vulnerability in FOBS, where an attacker may cause deserialization of untrusted data by sending a malicious FOBS- encoded message. A successful exploit of this vulnerability might lead to code execution.
Weakness: CWE-502
Which versions are affected by CVE-2026-24186?
It affects 1 product.
Products include Nvidia Nvflare.
How do I fix CVE-2026-24186?
No fix has been published for CVE-2026-24186 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-2026-24186 being exploited?
There is no known exploitation of CVE-2026-24186 in the wild and no public exploit code.
Other vulnerabilities in NVIDIA FLARE SDK
- CVE-2026-24178 NVIDIA NVFlare Dashboard: Authorization bypass through user-controlled key via user management and authentication system
- CVE-2022-34668 NVFLARE unsafe deserialization due to Pickle
- CVE-2022-31604 Unsafe deserialisation in the PKI implementation scheme of NVFlare
- CVE-2022-31605 Unsafe yaml deserialization in NVFlare
- CVE-2026-24204 Path traversal in FLARE SDK
Sources
Also known as GHSA-3468-q87c-9xhv.