Untrusted Search Path Affecting ouroboros-ai package, versions [,0.39.0)
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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Test your applications- Snyk IDSNYK-PYTHON-OUROBOROSAI-17670575
- published29 Jun 2026
- disclosed29 May 2026
- creditqerogram
Introduced: 29 May 2026
CVE-2026-47211 (opens in a new tab)How to fix?
Upgrade ouroboros-ai to version 0.39.0 or higher.
Overview
ouroboros-ai is a Specification-first workflow engine for AI coding agents. Works with Claude Code and Codex CLI.
Affected versions of this package are vulnerable to Untrusted Search Path in the process of loading environment variables from the local .env file in the project directory. An attacker can execute arbitrary code by including a malicious script in a cloned repository and setting variables such as OUROBOROS_CLI_PATH or OPENCODE_CLI_PATH to point to this script, which will be executed when certain commands are run.
Workaround
This vulnerability can be mitigated by carefully inspecting any .env file inside cloned repositories before running commands to ensure it does not contain unexpected OUROBOROS_*_CLI_PATH or OPENCODE_CLI_PATH overrides.