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. 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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/Q00/ouroboros/commit/4e70b760b4eb157469b58645339ba831f6513d37
https://github.com/Q00/ouroboros/pull/1078
https://github.com/Q00/ouroboros/security/advisories/GHSA-c4m7-2gwp-vw76

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-03 20:17

Updated : 2026-09-10 20:31

NVD link : CVE-2026-47211

Mitre link : CVE-2026-47211

CVE.ORG link : CVE-2026-47211

JSON object : View

Products Affected

No product.

CWE

CWE-426

Untrusted Search Path

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