CVE-2020-4066: Command Injection in Limdu trainBatch function

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-06-22 · updated 2026-06-17
Weakness: CWE-78

Description

In Limdu before 0.95, the trainBatch function has a command injection vulnerability. Clients of the Limdu library are unlikely to be aware of this, so they might unwittingly write code that contains a vulnerability. This has been patched in 0.95.

Affected products

erelsgl Limdu: before 0.9.5 — fixed in 0.9.5

How to fix

Upgrade to a fixed version: erelsgl Limdu 0.9.5. Check the vendor advisory for mitigations.

References

https://github.com/erelsgl/limdu/security/advisories/GHSA-77qv-gh6f-pgh4
https://github.com/erelsgl/limdu/security/advisories/GHSA-77qv-gh6f-pgh4

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