Omnigent is an open-source AI agent framework and meta-harness for orchestrating coding agents. Prior to 0.3.0, an authenticated user can upload a session-scoped agent bundle with an absolute or traversal-containing os_env.cwd value because omnigent/spec/parser.py stores the value verbatim and omnigent/spec/validator.py does not constrain it. On a runner where OMNIGENT_RUNNER_WORKSPACE is unset, omnigent/runner/resource_registry.py preserves the attacker-controlled path and omnigent/inner/os_env.py uses the resolved path as the environment root and copytree source. The _assert_within_cwd check then treats that attacker-selected root as trusted, allowing sys_os_read, write, edit, and shell tools to access runner files and environment secrets outside the intended workspace. This issue is fixed in version 0.3.0.

CVE-2026-62677 is a path traversal vulnerability in Omnigent, an open-source AI agent framework for orchestrating coding agents. Prior to version 0.3.0, an authenticated user could upload a session-scoped agent bundle containing an absolute or traversal-containing os_env.cwd value. The parser stored this value verbatim without validation, and the validator failed to constrain it. When the OMNIGENT_RUNNER_WORKSPACE environment variable is unset, the attacker-controlled path is preserved through the resource registry and used as the environment root. The _assert_within_cwd security check is then bypassed because it treats the attacker-supplied root as trusted, enabling access to runner files and environment secrets via sys_os_read, write, edit, and shell tools outside the intended workspace. The vulnerability is fixed in Omnigent version 0.3.0.