Deserialization in Nv-Tlabs Gen3c
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.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.013 (69.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.013 · change: +0.004
Affected products
- Nv-Tlabs Gen3c — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/nv-tlabs/GEN3C/pull/62 (issue-tracking, technical-description)
- github.com/nv-tlabs/GEN3C/pull/63 (issue-tracking)
- github.com/nv-tlabs/GEN3C/commit/db2ffe12ced12ddafcec5e0422ee46ce8520746b (patch)
- www.vulncheck.com/advisories/nvidia-sil-gen3c-unauthenticated-rce-via-pickle-de… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-53805?
- CVE-2026-53805 is a critical-severity vulnerability in Nv-Tlabs Gen3c, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2026-06-17.
- How severe is CVE-2026-53805?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2026-53805 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.