Safety check false positive depends on accumulated resumed-session context

What version of Codex CLI is running?

codex-cli 0.151.0

What subscription do you have?

ChatGPT Plus

Which model were you using?

GPT-5.6 Sol (Default)

What platform is your computer?

inux AsusTUFGaming 6.18.33.2-microsoft-standard-WSL2 #1 SMP PREEMPT_DYNAMIC Thu Jun 18 21:54:43 UTC 2026 x86_64 GNU/Linux

What terminal emulator and version are you using (if applicable)?

Windows Terminal + WSL

Codex doctor report

{
  "schemaVersion": 1,
  "generatedAt": "1788980981s since unix epoch",
  "overallStatus": "warning",
  "codexVersion": "0.151.0",
  "checks": {
    "app_server.status": {
      "id": "app_server.status",
      "category": "app-server",
      "status": "ok",
      "summary": "background server is not running",
      "details": {
        "control socket": "/home/linuxagent/.codex/app-server-control/app-server-control.sock",
        "daemon state dir": "/home/linuxagent/.codex/app-server-daemon",
        "mode": "ephemeral",
        "pid file": "/home/linuxagent/.codex/app-server-daemon/app-server.pid (missing)",
        "settings": "/home/linuxagent/.codex/app-server-daemon/settings.json (missing)",
        "status": "not running",
        "update-loop pid file": "/home/linuxagent/.codex/app-server-daemon/app-server-updater.pid (missing)"
      },
      "remediation": null,
      "durationMs": 0
    },
    "auth.credentials": {
      "id": "auth.credentials",
      "category": "auth",
      "status": "ok",
      "summary": "auth is configured",
      "details": {
        "auth file": "/home/linuxagent/.codex/auth.json",
        "auth storage mode": "File",
        "stored API key": "false",
        "stored ChatGPT tokens": "true",
        "stored agent identity": "false",
        "stored auth mode": "chatgpt"
      },
      "remediation": null,
      "durationMs": 0
    },
    "config.load": {
      "id": "config.load",
      "category": "config",
      "status": "ok",
      "summary": "config loaded",
      "details": {
        "CODEX_HOME": "/home/linuxagent/.codex",
        "config.toml": "/home/linuxagent/.codex/config.toml",
        "config.toml parse": "ok",
        "cwd": "/home/linuxagent",
        "enabled feature flags": "shell_tool, view_image, unified_exec, unified_exec_zsh_fork, shell_snapshot, content_item_kinds, code_mode_host, terminal_resize_reflow, sqlite, hooks, enable_request_compression, unbounded_connection_retries, multi_agent, apps, tool_search_always_defer_mcp_tools, tool_suggest, plugins, in_app_browser, in_app_chat, in_app_dictation, in_app_local_automation, in_app_updates, browser_use, browser_use_full_cdp_access, browser_use_external, computer_use, remote_plugin, plugin_sharing, image_generation, resize_all_images, item_ids, skill_mcp_dependency_install, skill_search, mentions_v2, steer, guardian_approval, goals, collaboration_modes, tool_call_mcp_elicitation, auth_elicitation, personality, fast_mode, tui_app_server, remote_compaction_v2, compaction_image_budget, workspace_dependencies",
        "feature flag overrides": "none",
        "feature flags enabled": "46",
        "log dir": "/home/linuxagent/.codex/log",
        "mcp servers": "1",
        "model": "gpt-5.6-sol",
        "model provider": "openai",
        "sqlite home": "/home/linuxagent/.codex"
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      "remediation": null,
      "durationMs": 0
    },
    "git.environment": {
      "id": "git.environment",
      "category": "git",
      "status": "ok",
      "summary": "git version 2.53.0",
      "details": {
        "PATH git #1": "/usr/bin/git",
        "PATH git #2": "/bin/git",
        "PATH git entries": "2",
        "git build options": "git version 2.53.0; cpu: x86_64; no commit associated with this build; sizeof-long: 8; sizeof-size_t: 8; shell-path: /bin/sh; rust: disabled; gettext: enabled; libcurl: 8.18.0; zlib: 1.3.1; SHA-1: SHA1_DC; SHA-256: SHA256_BLK; default-ref-format: files; default-hash: sha1",
        "git exec path": "/usr/lib/git-core",
        "git version": "git version 2.53.0",
        "repo detected": "false",
        "selected git": "/usr/bin/git"
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      "remediation": null,
      "durationMs": 116
    },
    "installation": {
      "id": "installation",
      "category": "install",
      "status": "ok",
      "summary": "installation looks consistent",
      "details": {
        "PATH codex #1": "/usr/local/bin/codex",
        "current executable": "/usr/local/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/bin/codex",
        "install context": "npm (package /usr/local/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl, bin /usr/local/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/bin, resources /usr/local/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/codex-resources, path /usr/local/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/codex-path)",
        "managed by bun": "false",
        "managed by npm": "true",
        "managed by pnpm": "false",
        "managed package root": "/usr/local/lib/node_modules/@openai/codex",
        "npm update target": "/usr/local/lib/node_modules/@openai/codex"
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      "remediation": null,
      "durationMs": 780
    },
    "mcp.config": {
      "id": "mcp.config",
      "category": "mcp",
      "status": "warning",
      "summary": "MCP configuration has optional issues",
      "details": {
        "configured servers": "1",
        "disabled servers": "0",
        "qwen": [
          "env var AIDER_OPENAI_API_BASE is not set",
          "<redacted>"
        ],
        "stdio servers": "1"
      },
      "remediation": "Set the missing MCP env vars or disable the affected server.",
      "durationMs": 0
    },
    "network.env": {
      "id": "network.env",
      "category": "network",
      "status": "ok",
      "summary": "network-related environment looks readable",
      "details": {
        "managed proxy": "not configured",
        "proxy env vars": "none",
        "respect system proxy": "disabled"
      },
      "remediation": null,
      "durationMs": 0
    },
    "network.provider_reachability": {
      "id": "network.provider_reachability",
      "category": "reachability",
      "status": "ok",
      "summary": "active provider endpoints are reachable over HTTP",
      "details": {
        "ChatGPT inference URL": "https://chatgpt.com/backend-api/<redacted> reachable (HTTP 405)",
        "reachability mode": "ChatGPT auth"
      },
      "remediation": null,
      "durationMs": 278
    },
    "network.websocket_reachability": {
      "id": "network.websocket_reachability",
      "category": "websocket",
      "status": "ok",
      "summary": "Responses WebSocket handshake succeeded",
      "details": {
        "DNS": "2 IPv4, 2 IPv6, first IPv6",
        "auth mode": "chatgpt",
        "connect timeout": "15000 ms",
        "endpoint": "wss://chatgpt.com/backend-api/<redacted>",
        "handshake result": "HTTP 101 Switching Protocols",
        "model provider": "openai",
        "provider name": "OpenAI",
        "proxy env vars": "none",
        "reasoning header": "false",
        "server model present": "false",
        "supports websockets": "true",
        "wire API": "responses"
      },
      "remediation": null,
      "durationMs": 834
    },
    "runtime.provenance": {
      "id": "runtime.provenance",
      "category": "runtime",
      "status": "ok",
      "summary": "running npm on linux-x86_64",
      "details": {
        "commit": "unknown",
        "current executable": "/usr/local/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/bin/codex",
        "install method": "npm (package /usr/local/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl, bin /usr/local/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/bin, resources /usr/local/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/codex-resources, path /usr/local/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/codex-path)",
        "platform": "linux-x86_64",
        "version": "0.151.0"
      },
      "remediation": null,
      "durationMs": 0
    },
    "runtime.search": {
      "id": "runtime.search",
      "category": "search",
      "status": "ok",
      "summary": "search is OK (bundled)",
      "details": {
        "search command": "/usr/local/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/codex-path/rg",
        "search command readiness": "file exists",
        "search provider": "bundled"
      },
      "remediation": null,
      "durationMs": 0
    },
    "sandbox.helpers": {
      "id": "sandbox.helpers",
      "category": "sandbox",
      "status": "ok",
      "summary": "sandbox configuration is readable",
      "details": {
        "approval policy": "OnRequest",
        "codex-linux-sandbox helper": "/home/linuxagent/.codex/tmp/arg0/codex-arg0SgMp6e/codex-linux-sandbox",
        "execve wrapper helper": "/home/linuxagent/.codex/tmp/arg0/codex-arg0SgMp6e/codex-execve-wrapper",
        "filesystem sandbox": "restricted",
        "network sandbox": "restricted"
      },
      "remediation": null,
      "durationMs": 0
    },
    "security.endpoint": {
      "id": "security.endpoint",
      "category": "security",
      "status": "ok",
      "summary": "endpoint protection is not inspected on this platform",
      "details": {
        "endpoint products": "not inspected on this platform"
      },
      "remediation": null,
      "durationMs": 0
    },
    "state.paths": {
      "id": "state.paths",
      "category": "state",
      "status": "ok",
      "summary": "state paths and databases are inspectable",
      "details": {
        "CODEX_HOME": "/home/linuxagent/.codex (dir)",
        "active rollout files": "7 files, 157696218 total bytes, 22528031 average bytes",
        "archived rollout files": "0 files, 0 total bytes, 0 average bytes",
        "goals DB": "/home/linuxagent/.codex/goals_1.sqlite (file)",
        "goals DB integrity": "ok",
        "log DB": "/home/linuxagent/.codex/logs_2.sqlite (file)",
        "log DB integrity": "ok",
        "log dir": "/home/linuxagent/.codex/log (missing)",
        "memories DB": "/home/linuxagent/.codex/memories_1.sqlite (file)",
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        "queue DB": "/home/linuxagent/.codex/queue_1.sqlite (file)",
        "queue DB integrity": "ok",
        "sqlite home": "/home/linuxagent/.codex (dir)",
        "state DB": "/home/linuxagent/.codex/state_5.sqlite (file)",
        "state DB integrity": "ok",
        "thread history DB": "/home/linuxagent/.codex/thread_history_1.sqlite (file)",
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      "summary": "rollout files and state DB thread inventory agree",
      "details": {
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        "rollout DB active rows": "7",
        "rollout DB archive mismatches": "0",
        "rollout DB archived files": "0",
        "rollout DB archived rows": "0",
        "rollout DB duplicate DB paths": "0",
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        "rollout DB model providers": "openai=7",
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      "durationMs": 0
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    "system.environment": {
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      "status": "ok",
      "summary": "OS language C",
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          "severity": "warning",
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      "summary": "update configuration is locally consistent",
      "details": {
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        "check for update on startup": "true",
        "dismissed version": "0.153.4",
        "last checked at": "2026-09-09T17:52:56.146721824Z",
        "latest version": "0.153.4",
        "latest version status": "newer version is available",
        "npm update target": "/usr/local/lib/node_modules/@openai/codex",
        "update action": "npm install -g @openai/codex",
        "version cache": "/home/linuxagent/.codex/version.json"
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      "remediation": null,
      "durationMs": 1320
    }
  }
}

What issue are you seeing?

A benign local build task is repeatedly blocked by the additional safety check in a long Codex session resumed with codex resume.

The displayed message is:

"This content can't be shown
We take extra caution with cybersecurity requests. If you're a security professional, you may be able to apply for Trusted Access."

The blocked task was not a cybersecurity task. It was local Mesa 25.0.7/AArch64 development: build libzink.a, identify/build the corresponding Gallium shared artifact, and report local file metadata such as architecture, size, SHA-256, and dynamic dependencies.

I progressively reduced the prompt after repeated blocks. A minimal version containing no pasted build logs was still blocked immediately in the long resumed session.

I then performed an A/B test requested by OpenAI Support:

• Long existing session resumed with codex resume: the minimal prompt is blocked immediately.
• Brand-new Codex session: the exact same prompt is accepted and completes successfully.

In the fresh session Codex successfully built both libzink.a and libgallium-25.0.7.so and returned the requested metadata.

This suggests that accumulated context in a long resumed session may contribute to the safety false positive rather than the minimal prompt itself.

Environment:

• Codex CLI 0.151.0
• WSL
• GPT-5.6 Sol (Default)
• September 9, 2026
• Blocks occurred approximately 20:20–20:35 Europe/Paris
• Fresh-session A/B test completed around 21:00 Europe/Paris

What steps can reproduce the bug?

Uploaded thread: 01a04df4-e9e9-7f52-b19c-b642616cf42a

What is the expected behavior?

A benign local open-source build and artifact-inspection request should not be blocked solely because it is submitted in a long resumed session.

The same prompt should receive materially consistent safety treatment in a resumed session and in a fresh session when the requested operation and relevant context are unchanged.

If accumulated context is responsible for a safety decision, the benign local build request in this case should still be recognized as allowed rather than producing a cybersecurity safety-check false positive.

Additional information

The affected session was uploaded through Codex CLI /feedback using the "safety check" category.

Uploaded thread/session ID:
01a04df4-e9e9-7f52-b19c-b642616cf42a

At exit, the affected session reported:

Token usage: total=317,145
input=307,127 (+2,531,840 cached)
output=10,018
reasoning=2,202

The issue was first reported through OpenAI Support. Support suggested the fresh-session A/B test, which produced the result described above.

Codex CLI does not expose a thumbs-down control or Request ID for this blocked response in my environment.

The issue reports a safety-check false positive in Codex CLI 0.151.0 on WSL2 after resuming a session, but names no source file or test. Start by locating the resumed-session safety-check entry point and reproduce the behavior with accumulated context. Done means the false positive is covered by a regression test and no longer occurs.