2.1

CVSS Score

4.0

-

CVSS Score

Basic Information

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CVE-2026-8766

CVE-2026-8766: @kilocode/cli Vulnerable to Exposure of Sensitive Information to an Unauthorized Actor

A flaw has been found in Kilo-Org kilocode up to 7.0.47. This issue affects the function Load of the file packages/opencode/src/config/config.ts of the component Environment Variable Handler. Executing a manipulation of the argument KILO_CONFIG_CONTENT can lead to information disclosure. It is possible to launch the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2026-8766

CVE-2026-8766:

2.1

CVSS Score

4.0

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
@kilocode/cli	npm	<= 7.0.47

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability exists in the load function of @kilocode/cli which is responsible for handling the KILO_CONFIG_CONTENT environment variable. The function performs token substitution, specifically for {file:/path} tokens, before validating the configuration schema. This allows an attacker who can control the KILO_CONFIG_CONTENT environment variable to read arbitrary files from the system. The file's content is then exposed through a Zod schema validation error. The vulnerability is a classic case of improper input validation and insecure processing of environment variables. The provided gist offers a detailed explanation and a proof-of-concept that confirms this behavior.

Vulnerable functions

load

packages/opencode/src/config/config.ts

The `load` function in `packages/opencode/src/config/config.ts` is vulnerable to an arbitrary file read. An attacker can set the `KILO_CONFIG_CONTENT` environment variable to a JSON string containing a `{file:/path}` token. The `load` function processes this token and substitutes it with the content of the specified file before any validation. This leads to the content of the file being leaked in an error message when the application's schema validation fails on the unrecognized key.

Vulnerability Intelligence
Miggo AI

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WAF Protection Rules

WAF Rule

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Reasoning

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