CVE-2019-10844 is a critical-severity (CVSS 9.8) vulnerability in nnabla. A fix is available for nnabla — see the affected versions and patch details below.
Sony Neural Network Libraries reliance on untrusted inputs prior to v1.0.10
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
nnablaReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.
Description
nbla/logger.cpp in libnnabla.a in Sony Neural Network Libraries (aka nnabla) prior to v1.0.10 relies on the HOME environment variable, which might be untrusted.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | nnabla | all versions | 1.0.10pip install --upgrade 'nnabla==1.0.10' |
Affected Products
neural network librariessonyDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for nnabla, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update nnabla to 1.0.10 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2019-10844 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
Frequently Asked Questions
Is CVE-2019-10844 in your dependencies?
Find it across PyPI, including transitive dependencies.