MCP, MCP server
NexQL Postgres MCP
Standalone Postgres MCP server — schema-aware, read-only by default, installable everywhere.
Compatibility: Not stated.
Grade B
Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
Rescanned at commit 1931213a01ab, unchanged since the check below.
NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST SECRETS_PATH_DOTENV INSTALL_DOCUMENTED_INSTALLER OBFUSCATION_FILE_OVER_READ_CAP
Why this grade
- NETWORK_NO_FIXED_HOST Low
Makes a network call whose host is not written as a fixed address.
CLAUDE.md, line 32
# curl -fsSL -o /tmp/libtinfo5.deb http://deb.debian.org/debian/pool/main/n/ncurses/libtinfo5_6.4-4_amd64.deb - NETWORK_UNNAMED_HOST Low
Calls a fixed host that the description does not name.
CLAUDE.md, line 32
# curl -fsSL -o /tmp/libtinfo5.deb http://deb.debian.org/debian/pool/main/n/ncurses/libtinfo5_6.4-4_amd64.deb - SECRETS_PATH_DOTENV Low
Mentions a .env file.
crates/nexql-conn/src/pool.rs, line 189
.env("LANG", "C.UTF-8") - INSTALL_DOCUMENTED_INSTALLER Note
Documentation shows an installer that pipes a download into a shell.
README.md, line 95
curl -fsSL https://raw.githubusercontent.com/NexQL-OSS/mcp/main/scripts/install.sh | bash - OBFUSCATION_FILE_OVER_READ_CAP Note
A file was over the read cap and was not fully read.
crates/nexql-tools/src/exec.rs, line 1
// SPDX-License-Identifier: GPL-3.0-only
Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.
Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.
What was checked
Plain notes from the hygiene checks.
Permissions
Pass
No shell or command execution found, and no extra permission was declared.
Install and update
Note
README documents an installer that pipes a download into a shell. The docs document an installer that pipes a download into a shell.
INSTALL_DOCUMENTED_INSTALLER
README.md, line 95
curl -fsSL https://raw.githubusercontent.com/NexQL-OSS/mcp/main/scripts/install.sh | bash
README.md, line 101
NEXQL_MCP_VERSION=v0.2.2 curl -fsSL https://raw.githubusercontent.com/NexQL-OSS/mcp/main/scripts/install.sh | bash
README.md, line 128
curl -LsSf https://astral.sh/uv/install.sh | sh # macOS / Linux
Show more
docs/publish-pypi-uv.md, line 113
curl -LsSf https://astral.sh/uv/install.sh | sh # macOS / Linux
scripts/install.sh, line 5
# curl -fsSL https://raw.githubusercontent.com/NexQL-OSS/mcp/main/scripts/install.sh | bash
site/src/islands/NarrativePlayer.tsx, line 663
te-space:pre-wrap;word-break:break-all">curl -fsSL https://raw.githubusercontent.com/NexQL-OSS/mcp/main/scripts/install.sh | bash</pre>
Network
Concern
can reach deb.debian.org. The description does not name that host. can reach api.github.com. The description does not name that host. can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST
CLAUDE.md, line 32
# curl -fsSL -o /tmp/libtinfo5.deb http://deb.debian.org/debian/pool/main/n/ncurses/libtinfo5_6.4-4_amd64.deb
scripts/install.sh, line 81
curl -fsSL "https://api.github.com/repos/${REPO}/releases/latest" \
scripts/install.sh, line 123
curl -fsSL -o "${tmpdir}/${archive}" "$url"
Show more
scripts/publish-crates.sh, line 20
curl -s -o /dev/null -w '%{http_code}' \
crates/nexql-mcp/assets/setup/index.html, line 1327
const res = await fetch(`/api/v1${path}`, { ...opts, headers: { ...headers(), ...(opts.headers || {}) } });
Secrets
Concern
reads a credential or environment file.
SECRETS_PATH_DOTENV
crates/nexql-conn/src/pool.rs, line 189
.env("LANG", "C.UTF-8")
crates/nexql-conn/src/pool.rs, line 190
.env("LC_ALL", "C.UTF-8")
crates/nexql-conn/src/pool.rs, line 209
.env("LANG", "C.UTF-8")
Show more
crates/nexql-conn/src/resolve.rs, line 207
// Opt-in --env-file only (never implicit cwd .env).
crates/nexql-conn/src/resolve.rs, line 933
// Even if DATABASE_URL would come from a hypothetical .env, without
crates/nexql-conn/src/resolve.rs, line 946
let path = dir.path().join(".env");
crates/nexql-conn/src/resolve.rs, line 1287
let path = dir.path().join(".env");
crates/nexql-tools/src/detect.rs, line 212
/// Parse .env files under workspace root.
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Note
a file was over the read cap and was not fully read.
OBFUSCATION_FILE_OVER_READ_CAP
crates/nexql-tools/src/exec.rs, line 1
// SPDX-License-Identifier: GPL-3.0-only
site/package-lock.json, line 1
{
Licence
Pass
A licence file is present (LICENSE).
Maintainer activity
Pass
The latest commit is within the last 365 days.
Note
Hygiene check of commit 1931213a01ab. README documents an installer that pipes a download into a shell. The docs document an installer that pipes a download into a shell. can reach deb.debian.org. The description does not name that host. can reach api.github.com. The description does not name that host. can reach a host that is not written as a fixed address. reads a credential or environment file. a file was over the read cap and was not fully read.
Date and source
Date checked:
github.com
Commit graded: 1931213a01abf2c81705922412508d225db31235
This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.