CVE-2026-53805

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.

CVSS v3.1 Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0069

Probability of exploitation

0.48%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-502 Deserialization of Untrusted Data

References

Other References

https://github.com/nv-tlabs/GEN3C/commit/db2ffe12ced12ddafcec5e0422ee46ce8520746b https://github.com/nv-tlabs/GEN3C/pull/62 https://github.com/nv-tlabs/GEN3C/pull/63 https://www.vulncheck.com/advisories/nvidia-sil-gen3c-unauthenticated-rce-via-pickle-deserialization-in-inference-api

Frequently Asked Questions

What is CVE-2026-53805? +

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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-53805? +

CVE-2026-53805 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0069, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-53805? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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