Skills/PyPI/mithwire-mcp

mithwire-mcp@0.5.1

CAUTION· not started

Publisher claims: "MCP browser bridge that gives AI clients full access to a live browser environment." Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher codeisalifestyle · publishing for 161 daysInstalls 5,707Last detonated 3d ago
What would fix thisWatchDispute verdict

Coverage

Not started: dependency install failed; the server itself was not observed.
Tested
the dependency install step · every file read, file written and host contacted by what ran
Not tested
server startup · the tool list · tool behavior

What this means for the label: Caution here covers what ran. The server's tools were not exercised with a real credential, so nothing about their behavior is asserted; the credential summary below says what to do with that.

Before you give it your token

It will ask for
no credential variables read in the code
Where it talks to
no vendor host named in the codeAlso ipapi.is — not the publisher's domain; check what for before connecting.
What the honeypot saw
no credential files read · no network
What we could not test
server startup · the tool list · tool behavior

Connect it under the guard. Not started: dependency install failed; the server itself was not observed. The code names no credential variable; the guard pins the network to what the honeypot saw and logs every call.

$vet-skills run --net declared -- uvx mithwire-mcp

Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios; not started: dependency install failed; the server itself was not observed) on 2026-11-11 and scored it 62/100 (Caution). It is not known to be malicious, but it has behaviour or code a security policy should decide on before install. Notable findings: Credential pass-through configuration; URL with embedded credentials; Credential pass-through configuration. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 0 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.1sprocessdependency install exit 1 ·
0.1sclaimednot started: dependency install failed (exit 1); the server itself was not observed
0.1sprocessscript backend runs setup only
0.1sprocessno install scripts to re-run

Static findings

MEDIUM
document.cookie accesstests/test_actions.py:234 · document.cookie access — can steal session cookiesif script == "document.cookie":Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
HIGH
Credential pass-through configurationmithwire_mcp/state_store.py:440 · Credential pass-through configuration — agent relays sensitive credentials# Proxies (first-class registry of upstream proxy credentials)Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST02
MEDIUM
HTTP URL with a raw public IP addresstests/test_align_timezone_retry.py:159 · HTTP URL with a raw public IP address — a hard-coded destination that domain-based monitoring cannot namebrowser = MithwireBrowser(headless=True, proxy=parse_proxy("http://1.2.3.4:8080"))Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
HTTP URL with a raw public IP addresstests/test_align_timezone_retry.py:104 · HTTP URL with a raw public IP address — a hard-coded destination that domain-based monitoring cannot namebrowser = MithwireBrowser(headless=True, proxy=parse_proxy("http://1.2.3.4:8080"))Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
HIGH
URL with embedded credentialsmithwire_mcp/state_store.py:498 · URL with embedded credentials — may be phishing or credential leaking# Allow ``server`` URL form (``http://user:pass@host:port``) on input;Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
MEDIUM
URL using a raw public IP addresstests/test_align_timezone_retry.py:159 · URL using a raw public IP address — may bypass domain-based filteringbrowser = MithwireBrowser(headless=True, proxy=parse_proxy("http://1.2.3.4:8080"))Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
HIGH
Credential pass-through configurationmithwire_mcp/browser.py:321 · Credential pass-through configuration — agent relays sensitive credentialsChromium has no command-line way to pass proxy credentials, so we driveFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST02
MEDIUM
Process kill commandmithwire_mcp/browser.py:254 · Process kill command — agent can terminate processes# force-kill fallback on every close. Awaiting aclose() + process.wait()Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
URL using a raw public IP addresstests/test_browser.py:24 · URL using a raw public IP address — may bypass domain-based filteringself.assertIn("--proxy-server=http://1.2.3.4:8080", args)Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
File permission modification commandmithwire_mcp/state_store.py:45 · File permission modification command — agent changes file ownership/permissionslogger.debug("Could not chmod %s to %o: %s", path, mode, exc)Fix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05
HIGH
document.cookie accessmithwire_mcp/actions.py:811 · document.cookie access — can steal session cookiesdoc_cookie = await browser.evaluate("document.cookie")Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
HIGH
URL with embedded credentialsmithwire_mcp/server.py:364 · URL with embedded credentials — may be phishing or credential leaking"'http://user:pw@host:port', rotation_url, tags}). The persisted "Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
MEDIUM
URL with embedded credentialstests/test_browser.py:30 · URL with embedded credentials — may be phishing or credential leakingproxy = parse_proxy("http://user:[email protected]:8080")Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
MEDIUM
URL using a raw public IP addresstests/test_align_timezone_retry.py:104 · URL using a raw public IP address — may bypass domain-based filteringbrowser = MithwireBrowser(headless=True, proxy=parse_proxy("http://1.2.3.4:8080"))Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
HIGH
URL with embedded credentialsmithwire_mcp/server.py:128 · URL with embedded credentials — may be phishing or credential leaking"proxy accepts 'http://host:port', 'http://user:pass@host:port', the "Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
HIGH
Auto-update or dynamic fetch configurationmithwire_mcp/server.py:1405 · Auto-update or dynamic fetch configuration — agent may load new code at runtime# Auto-update profile warming_status based on resultFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
URL using a raw public IP addresstests/test_browser.py:15 · URL using a raw public IP address — may bypass domain-based filteringproxy = parse_proxy("http://1.2.3.4:8080")Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
HIGH
Collapsed <details> block carrying instructionsREADME.md:202 · Collapsed <details> block carrying instructions<summary><b>🔧 Advanced: HTML, JS Evaluation & Tracing</b></summary> - `browser_html` - Get the raw HTML of the current page or an element - `browser_evaluate` Fix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01
HIGH
Credential pass-through configurationmithwire_mcp/migrate.py:17 · Credential pass-through configuration — agent relays sensitive credentialsinlined the same proxy credentials in multiple places. The plan'sFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST02
HIGH
Collapsed <details> block carrying instructionsREADME.md:134 · Collapsed <details> block carrying instructions<summary><b>🔁 Session Lifecycle</b></summary> - `session_start` - Launch a new browser session (ephemeral or persistent profile) - `session_list` - List activeFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01
MEDIUM
Python subprocess execution detectedtests/test_lifecycle.py:171 · Python subprocess execution detectedchild = subprocess.Popen([sys.executable, "-c", "import time; time.sleep(60)"])Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
URL with embedded credentialstests/test_runtime_proxy_preflight.py:208 · URL with embedded credentials — may be phishing or credential leakingproxy="http://user:[email protected]:8080",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
MEDIUM
HTTP URL with a raw public IP addresstests/test_browser.py:24 · HTTP URL with a raw public IP address — a hard-coded destination that domain-based monitoring cannot nameself.assertIn("--proxy-server=http://1.2.3.4:8080", args)Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
URL using a raw public IP addresstests/test_runtime_proxy_preflight.py:464 · URL using a raw public IP address — may bypass domain-based filtering"server": "http://1.2.3.4:8080",Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
URL with embedded credentialstests/test_launch_cleanup.py:308 · URL with embedded credentials — may be phishing or credential leakingheadless=True, proxy=parse_proxy("http://user:[email protected]:8080")Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
MEDIUM
URL using a raw public IP addresstests/test_runtime_proxy_preflight.py:312 · URL using a raw public IP address — may bypass domain-based filtering"server": "http://1.2.3.4:8080",Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
URL with embedded credentialstests/test_proxy.py:103 · URL with embedded credentials — may be phishing or credential leakingcfg = parse_proxy("http://user:supersecret@h:8080")Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
MEDIUM
HTTP URL with a raw public IP addresstests/test_browser.py:15 · HTTP URL with a raw public IP address — a hard-coded destination that domain-based monitoring cannot nameproxy = parse_proxy("http://1.2.3.4:8080")Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
Python subprocess execution detectedtests/test_process_lifecycle_e2e.py:39 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
URL using a raw public IP addresstests/test_runtime_proxy_preflight.py:585 · URL using a raw public IP address — may bypass domain-based filtering"server": "http://1.2.3.4:8080",Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
URL using a raw public IP addresstests/test_proxy.py:35 · URL using a raw public IP address — may bypass domain-based filteringself.assertEqual(cfg.proxy_server_arg(), "--proxy-server=http://1.2.3.4:8080")Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
HTTP URL with a raw public IP addresstests/test_runtime_proxy_preflight.py:557 · HTTP URL with a raw public IP address — a hard-coded destination that domain-based monitoring cannot name"server": "http://1.2.3.4:8080",Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
URL with embedded credentialstests/test_proxy.py:45 · URL with embedded credentials — may be phishing or credential leakingcfg = parse_proxy("http://us%40er:p%3Aass@host:3128")Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
MEDIUM
HTTP URL with a raw public IP addresstests/test_proxy.py:140 · HTTP URL with a raw public IP address — a hard-coded destination that domain-based monitoring cannot name"server": "http://1.2.3.4:8080",Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
URL with embedded credentialstests/test_proxy.py:152 · URL with embedded credentials — may be phishing or credential leaking"server": "http://u:[email protected]:8080",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
MEDIUM
URL with embedded credentialstests/test_runtime_proxy_preflight.py:353 · URL with embedded credentials — may be phishing or credential leakingproxy="http://user:[email protected]:8080",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
MEDIUM
URL with embedded credentialstests/test_runtime_proxy_preflight.py:184 · URL with embedded credentials — may be phishing or credential leakingproxy="http://user:[email protected]:8080",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
MEDIUM
HTTP URL with a raw public IP addresstests/test_runtime_proxy_preflight.py:506 · HTTP URL with a raw public IP address — a hard-coded destination that domain-based monitoring cannot name"server": "http://1.2.3.4:8080",Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
URL using a raw public IP addresstests/test_proxy.py:118 · URL using a raw public IP address — may bypass domain-based filtering"server": "http://1.2.3.4:8080",Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
HTTP URL with a raw public IP addresstests/test_runtime_proxy_preflight.py:464 · HTTP URL with a raw public IP address — a hard-coded destination that domain-based monitoring cannot name"server": "http://1.2.3.4:8080",Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
URL with embedded credentialstests/test_proxy_registry.py:50 · URL with embedded credentials — may be phishing or credential leaking"server": "http://user:[email protected]:8081",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
MEDIUM
URL using a raw public IP addresstests/test_proxy.py:131 · URL using a raw public IP address — may bypass domain-based filteringcfg = parse_proxy({"server": "http://1.2.3.4:8080"})Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
HTTP URL with a raw public IP addresstests/test_runtime_proxy_preflight.py:312 · HTTP URL with a raw public IP address — a hard-coded destination that domain-based monitoring cannot name"server": "http://1.2.3.4:8080",Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
URL with embedded credentialstests/test_runtime_proxy_preflight.py:283 · URL with embedded credentials — may be phishing or credential leakingproxy="http://user:[email protected]:8080",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
MEDIUM
HTTP URL with a raw public IP addresstests/test_proxy.py:118 · HTTP URL with a raw public IP address — a hard-coded destination that domain-based monitoring cannot name"server": "http://1.2.3.4:8080",Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
Credential pass-through configurationtests/test_migrate_command.py:19 · Credential pass-through configuration — agent relays sensitive credentials*and* inline the same proxy credentials in two places, so we can verifyFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST02
MEDIUM
URL using a raw public IP addresstests/test_runtime_proxy_preflight.py:506 · URL using a raw public IP address — may bypass domain-based filtering"server": "http://1.2.3.4:8080",Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
URL using a raw public IP addresstests/test_proxy.py:168 · URL using a raw public IP address — may bypass domain-based filtering{"server": "http://1.2.3.4:8080", "rotation_url": "ftp://nope/r"}Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
Access to sensitive file pathstests/test_runtime.py:182 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesaction_args={"url": "file:///etc/passwd"},Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
URL with embedded credentialstests/test_proxy.py:95 · URL with embedded credentials — may be phishing or credential leakingcfg = parse_proxy("http://user:supersecret@h:8080")Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
MEDIUM
URL with embedded credentialstests/test_runtime_proxy_preflight.py:250 · URL with embedded credentials — may be phishing or credential leakingproxy="http://user:[email protected]:8080",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
MEDIUM
URL using a raw public IP addresstests/test_browser.py:46 · URL using a raw public IP address — may bypass domain-based filteringself.assertNotIn("--proxy-server=http://1.2.3.4:8080", args)Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
HTTP URL with a raw public IP addresstests/test_proxy.py:131 · HTTP URL with a raw public IP address — a hard-coded destination that domain-based monitoring cannot namecfg = parse_proxy({"server": "http://1.2.3.4:8080"})Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
HTTP URL with a raw public IP addresstests/test_proxy.py:35 · HTTP URL with a raw public IP address — a hard-coded destination that domain-based monitoring cannot nameself.assertEqual(cfg.proxy_server_arg(), "--proxy-server=http://1.2.3.4:8080")Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
URL with embedded credentialstests/test_proxy.py:38 · URL with embedded credentials — may be phishing or credential leakingcfg = parse_proxy("http://user:[email protected]:8080")Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
MEDIUM
URL using a raw public IP addresstests/test_runtime_proxy_preflight.py:557 · URL using a raw public IP address — may bypass domain-based filtering"server": "http://1.2.3.4:8080",Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
URL using a raw public IP addresstests/test_proxy.py:140 · URL using a raw public IP address — may bypass domain-based filtering"server": "http://1.2.3.4:8080",Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
HTTP URL with a raw public IP addresstests/test_browser.py:46 · HTTP URL with a raw public IP address — a hard-coded destination that domain-based monitoring cannot nameself.assertNotIn("--proxy-server=http://1.2.3.4:8080", args)Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
HTTP URL with a raw public IP addresstests/test_proxy.py:168 · HTTP URL with a raw public IP address — a hard-coded destination that domain-based monitoring cannot name{"server": "http://1.2.3.4:8080", "rotation_url": "ftp://nope/r"}Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07
MEDIUM
HTTP URL with a raw public IP addresstests/test_runtime_proxy_preflight.py:585 · HTTP URL with a raw public IP address — a hard-coded destination that domain-based monitoring cannot name"server": "http://1.2.3.4:8080",Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07

Cost to the agent

Instructions loaded
≈57 tok
1 file · 52 in bundle
Tool list per prompt
≈0 tok
0 tools · 0 per tool
Handshake
no reply
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 0

Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.

Known vulnerabilities

No advisories in OSV for mithwire-mcp@0.5.1 as of 3d ago. This is the package itself, not its dependencies.

What would make this Verified

18 points to 80 · weights: behavior 45%, static 25%, prompt 15%, publisher 15%
  1. Unclaimed publisher≈ +8 on the totalClaim codeisalifestyle: a verified publisher gets +50 on publisher trust. It is free and usually instant with GitHub sign-in.
  2. Hidden instructions≈ +6 on the totalRemove HTML comments, zero-width characters and white-on-white text that carry instructions. Everything the agent is meant to read should be visible to the person reading the file.
  3. Credential pass-through configuration≈ +4 on the totalStop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
  4. URL with embedded credentials≈ +4 on the totalStop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
  5. Auto-update or dynamic fetch configuration≈ +4 on the totalPin versions and sources; vendor anything fetched at install time.
  6. document.cookie access≈ +2 on the totalReplace encoded or assembled strings with plain literals and remove undeclared network calls.
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