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Vulnerability record · CVE-2026-62677 · published 21 August 2026

CVE-2026-62677: Path traversal vulnerability

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.

8.8 CVSS 3.1 High EPSS 0.61% · top 53.1% CWE-22 · Path traversal Deferred
8.8CVSS 3.1 base score
0.61%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
18 Sep 2026Last modified by NVD

Description

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

References

LinkTags
https://github.com/omnigent-ai/omnigent/commit/7ca0cca3c9a65c04c489edf68f0e080424a26868
https://github.com/omnigent-ai/omnigent/pull/1417
https://github.com/omnigent-ai/omnigent/releases/tag/v0.3.0
https://github.com/omnigent-ai/omnigent/security/advisories/GHSA-p8rw-8qj3-hf33

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Source: NIST National Vulnerability Database (record CVE-2026-62677), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.