CVE-2026-31236

Summary

The llm CLI tool thru 0.27.1 contains a critical code injection vulnerability via its –functions command-line argument. This argument is intended to allow users to provide custom Python function definitions. However, the tool directly executes the provided code using the unsafe exec() function without any sanitization, sandboxing, or security restrictions. An attacker can exploit this by crafting a malicious llm command with arbitrary Python code in the –functions argument and using social engineering to trick a victim into running it. This leads to arbitrary code execution on the victim's system, potentially granting the attacker full control.

Affected Software

VendorProductVersion RangeStatus
n/an/an/aaffected

Weaknesses

  • n/a

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: total

llm: llm CLI tool: Arbitrary code execution via code injection in –functions argument

Additional References

References