CVE-2026-31236 Affecting llm package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published19 May 2026
- disclosed12 May 2026
Introduced: 12 May 2026
CVE-2026-31236 (opens in a new tab)How to fix?
There is no fixed version for Debian:unstable llm.
NVD Description
Note: Versions mentioned in the description apply only to the upstream llm package and not the llm package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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.