RCE in Nebuly Optimate
CVE-2026-31217
The _load_model() function in the neural_magic_training.py script of the optimate project in commit a6d302f912b481c94370811af6b11402f51d377f (2024-07-21) allows arbitrary code execution. When a user supplies a directory path via the --model command-line argument, the function reads a module.py file from that directory and executes its contents directly using Python's exec() function. This design does not validate or sanitize the file's content, allowing an attacker who controls the input directory to execute arbitrary Python code in the context of the process running the script.
Vulnerability class: RCE (Remote Code Execution)
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: 0.007 (52.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.007 · change: +0.003
Affected products
- Nebuly Optimate — versions 2024-07-21
Weakness classification (CWE)
References
- github.com/nebuly-ai/optimate (Product)
- www.notion.so/CVE-2026-31217-35d1e13931888179ae40dea5258d2db9 (Third Party Advisory, Mitigation)
Frequently asked questions
- What is CVE-2026-31217?
- CVE-2026-31217 is a critical-severity vulnerability in Nebuly Optimate, classified under Code Injection. CVSS score: 9.8/10. Published 2026-05-12.
- How severe is CVE-2026-31217?
- Critical severity. CVSS v3 base score is 9.8 out of 10.