Skills/npm/mcp-gitlab

mcp-gitlab@2.3.25

VERIFIED· install only

Publisher claims: "GitLab MCP server for projects, merge requests, issues, pipelines, wiki, releases, and more" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher zereight · publishing for 642 daysInstalls 782KLast detonated 3d ago
$claude mcp add mcp-gitlab -- npx -y @zereight/mcp-gitlab
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Coverage

Nothing executable in the bundle ran; the trace covers the install step only.
Tested
every file read, file written and host contacted by what ran
Not tested
use of the skill by an agent

What this means for the label: Verified 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
COMMA_IN_PASSWORD_HINTDOWNLOAD_TOKEN_SECRETDOWNLOAD_TOKEN_TTLGITLAB_OAUTH_CLIENT_IDGITLAB_OAUTH_CLIENT_SECRETGITLAB_OAUTH_REDIRECT_URIGITLAB_OAUTH_TOKEN_PATHGITLAB_OAUTH_TOKEN_SCRIPTGITLAB_OAUTH_TOKEN_SCRIPT_TIMEOUT_SECONDSGITLAB_PERSONAL_ACCESS_TOKENGITLAB_PERSONAL_ACCESS_TOKEN_FILEGITLAB_USE_OAUTHMIN_SECRET_BYTESOAUTH_STATELESS_SECRETOAUTH_STATELESS_SECRET_PREVIOUS or --oauth / --use-oauth / --oauth-stateless-modeConfiguration, not credentials: ComSpec, DEFAULT_NULL, GITLAB_API_URL, GITLAB_MCP_REQUEST_BODY_LIMIT, GITLAB_PERMISSION_MODE, GITLAB_READ_ONLY_MODE, GITLAB_VERSION_CHECK_REGISTRY, JOB_LOG_MAX_PATTERN_LENGTH, LOG_FORMAT, MAX_PATTERN_LENGTH, PACKAGE_LATEST_PATH
Where it talks to
no vendor host named in the codeAlso claude.ai, claude.com, chatgpt.com, client.example, a.example — 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
use of the skill by an agent

Connect it with a scoped credential, under the guard, and read the third-party hosts first. The code names claude.ai, claude.com, chatgpt.com, client.example, a.example as well as its own vendor. The guard injects COMMA_IN_PASSWORD_HINT, DOWNLOAD_TOKEN_SECRET, DOWNLOAD_TOKEN_TTL, GITLAB_OAUTH_CLIENT_ID, GITLAB_OAUTH_CLIENT_SECRET, GITLAB_OAUTH_REDIRECT_URI, GITLAB_OAUTH_TOKEN_PATH, GITLAB_OAUTH_TOKEN_SCRIPT, GITLAB_OAUTH_TOKEN_SCRIPT_TIMEOUT_SECONDS, GITLAB_PERSONAL_ACCESS_TOKEN, GITLAB_PERSONAL_ACCESS_TOKEN_FILE, GITLAB_USE_OAUTH, MIN_SECRET_BYTES, OAUTH_STATELESS_SECRET, OAUTH_STATELESS_SECRET_PREVIOUS only into requests to the host you bind (and its subdomains) and refuses the rest.

$vet-skills run --net declared -- npx -y @zereight/mcp-gitlab

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 (1 scenario; nothing executable in the bundle ran; the trace covers the install step only) on 2026-11-11 and scored it 83/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 0 s · 1 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.0sprocessscript backend runs setup only
0.0sprocessscript backend runs setup only
0.0sprocessno install scripts to re-run

Static findings

HIGH
URL with embedded credentialsbuild/utils/url.js:35 · URL with embedded credentials — may be phishing or credential leaking* there ("http://alice:p,http://w@host" gives "http://alice:p"), and an entryFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
HIGH
URL with embedded credentialsbuild/utils/redact-url.js:575 · URL with embedded credentials — may be phishing or credential leaking// A URL inside another URL's path or query ("...?next=https://user:pass@host")Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
HIGH
URL with embedded credentialsbuild/utils/redact-url.js:809 · URL with embedded credentials — may be phishing or credential leaking// "https://a.example,https:user:[email protected]" is two URLs; the "@" after theFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
HIGH
URL with embedded credentialsbuild/utils/url.js:119 · URL with embedded credentials — may be phishing or credential leaking* URLs: "http://alice:12,http://password:34,http://tail@host" givesFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
HIGH
Access to sensitive file pathsbuild/utils/url.js:275 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files* rather than silently collapsed: `"/etc/passwd"` would otherwise encode to aFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
URL with embedded credentialsbuild/utils/redact-url.js:12 · URL with embedded credentials — may be phishing or credential leaking* host and port ("https://u:12/ab@host" has host "u"), so those forms use theFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
MEDIUM
npx invocation of non-well-known packagebuild/cli/setup.js:5 · npx invocation of non-well-known package — may execute untrusted codeconst SKILL_INSTALL = "npx skills add zereight/gitlab-mcp --skill gitlab-mcp-skill";Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
HIGH
URL with embedded credentialsbuild/utils/redact-url.js:392 · URL with embedded credentials — may be phishing or credential leaking// "https://user:pass@host" serializes as "https://host/"; keep the input's form.Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
HIGH
URL with embedded credentialsbuild/utils/redact-url.js:811 · URL with embedded credentials — may be phishing or credential leaking// by itself, so "https://alice:secret,https:word@host" stays one entry.Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07

Cost to the agent

Instructions loaded
≈61 tok
1 file · 81 in bundle

Tokens estimated at four characters each. Skills load their instruction text when triggered; the figure is what that costs.

Known vulnerabilities

No advisories in OSV for @zereight/mcp-gitlab@2.3.25 as of 3d ago. This is the package itself, not its dependencies.