CVE-2026-62677: high-severity vulnerability in omnigent-ai omnigent
Omnigent: Unvalidated os_env.cwd in agent bundle yields arbitrary host filesystem access on runners without OMNIGENT_RUNNER_WORKSPACE
Published
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8epss 0.6%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
omnigent-ai · omnigentRelated CVEs — omnigent-ai omnigent
In the same product, most dangerous first.
CVE-2026-62675HIGHOmnigent: Uploaded Agent Bundle Allows Authenticated Runner RCE via Python Callable ToolsEPSS 0.7%CVE-2026-62674CRITICALOmnigent: Shared Agent Bundle Overwrite Leads to Authenticated Runner RCEEPSS 0.5%CVE-2026-112015HIGHOmnigent 0.3.0 before 0.14.0 Path Traversal via Sub-Agent os_env.cwdEPSS 0.4%CVE-2026-62676HIGHOmnigent Guardrail policy bypass: shell-command parser fails open in policies/builtins/_shell.pyEPSS 0.4%