CVE Watch3 ago 2026

CVE-2026-47211

Ouroboros is a local-first runtime for AI coding agents that records their actions and applies user-defined policies to constrain behavior.

CVSS

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Sin CVSS

EPSS

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KEV

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Exploit Today

0-100

Publicado: 3 ago 2026 · Última mod.: 3 ago 2026 · CWE-426

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

Ouroboros is a local-first runtime for AI coding agents that records their actions and applies user-defined policies to constrain behavior. In versions prior to 0.39.0, if a user clones a malicious repository and runs Ouroboros commands within that directory, it can lead to arbitrary code execution and potential system takeover. The vulnerability stems from Ouroboros loading the .env file from the current working directory. Execution-affecting environment variables such as OUROBOROS_CLI_PATH, OPENCODE_CLI_PATH, and other backend selectors are accepted directly from this local .env. An attacker can include a malicious script in the repository and point the CLI path variable to it (e.g., OUROBOROS_CLI_PATH=./malicious_script.sh). When the user executes a command like ouroboros init or any command that instantiates the adapter, the malicious script is executed instead of the intended CLI. This issue has been fixed in version 0.39.0.

Referencias oficiales

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