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CVE-2026-62677— Omnigent: Unvalidated os_env.cwd in agent bundle yields arbitrary host filesystem access on runners without OMNIGENT_RUNNER_WORKSPACE

Quick assessment

Affected
omnigent-ai omnigent
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Omnigent是omnigent组织的一个 AI 代理框架。 Omnigent 0.3.0之前版本存在路径遍历漏洞，该漏洞源于对os_env.cwd值的验证不当，存在路径遍历问题，可能导致经过身份验证的攻击者访问预期工作区之外的文件和环境机密。

CVSS 8.8 · High EPSS 0.61% · P48

Affected Version Matrix 1

VendorProduct Version RangeStatus
omnigent-ai omnigent < 0.3.0 affected
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I. Basic Information for CVE-2026-62677

Vulnerability Information
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Vulnerability Title
Omnigent: Unvalidated os_env.cwd in agent bundle yields arbitrary host filesystem access on runners without OMNIGENT_RUNNER_WORKSPACE
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Omnigent 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Omnigent是omnigent组织的一个 AI 代理框架。 Omnigent 0.3.0之前版本存在路径遍历漏洞，该漏洞源于对os_env.cwd值的验证不当，存在路径遍历问题，可能导致经过身份验证的攻击者访问预期工作区之外的文件和环境机密。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
omnigent-ai omnigent < 0.3.0 -

II. Public POCs for CVE-2026-62677

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Success marker: VULNERABLE: sys_os_read via attacker-controlled os_env.cwd=/root/omnigent_secrets exfiltrated PROOF_ed11a79ef2141c52
Reproduction recording is a Pro+ exclusive
Watch the full sandbox build + live exploit recording for this CVE. Limited-time ¥499/mo.
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claude_code · 7752 chars
GitHub 复现环境（可 clone 直接跑）
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III. Intelligence Information for CVE-2026-62677

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Patches & Fixes for CVE-2026-62677 (2)

Vendor Advisories for CVE-2026-62677 (1)

Vendor Pages for CVE-2026-62677 (1)

Same Patch Batch · omnigent-ai · 2026-08-21 · 4 CVEs total

CVE-2026-62674 9.0 CRITICAL Omnigent: Shared Agent Bundle Overwrite Leads to Authenticated Runner RCE
CVE-2026-62675 8.8 HIGH Omnigent: Uploaded Agent Bundle Allows Authenticated Runner RCE via Python Callable Tools
CVE-2026-62676 7.1 HIGH Omnigent Guardrail policy bypass: shell-command parser fails open in policies/builtins/_sh

IV. Related Vulnerabilities

Same product: omnigent
Same vendor: omnigent-ai
Same weakness: CWE-22

V. Comments for CVE-2026-62677

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