CVE-2026-53805 NVIDIA SIL GEN3C Unauthenticated RCE via Pickle Deserialization in Inference API
Unauthenticated attackers can achieve remote code execution on NVIDIA GEN3C inference servers by sending malicious pickle payloads to specific API endpoints.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-53805?
CVE-2026-53805 is a critical unsafe deserialization vulnerability in nv-tlabs GEN3C, published on 17 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
NVIDIA Spatial Intelligence Lab's (SIL) GEN3C contains an unauthenticated remote code execution vulnerability in the inference API server where the /request-inference and /seed-model endpoints deserialize raw HTTP request bodies using Python's pickle.loads() without authentication or input validation. Attackers can supply a crafted payload containing a __reduce__ gadget to the inference API port to achieve remote code execution as the inference process.
Weakness: CWE-502
Which versions are affected by CVE-2026-53805?
How do I fix CVE-2026-53805?
No fix has been published for CVE-2026-53805 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-2026-53805 being exploited?
There is no known exploitation of CVE-2026-53805 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-478c-rj3v-9229.