pg-cve-mcp — PostgreSQL CVE & Release Intelligence for AI Agents
Give your AI assistant direct access to PostgreSQL security intelligence: CVEs, yanked releases, known exploits, and upgrade paths for any version — queried, not browsed.
Why pg-cve-mcp?
Browsing a CVE dashboard is a human habit. Agents need answers, not pages.
pg-cve-mcp turns the curated dataset of the PG_CVE project — the same one powering the PostgreSQL CVE Dashboard — into MCP tools that any AI assistant (opencode, Claude Desktop, etc.) can call directly. What was a static page becomes a first-class, programmatic part of your AI workflow.
Unlike raw NVD feeds, the PG_CVE dataset is manually curated to carry the same judgment a careful DBA would apply:
- Yanked releases flagged with the real reason (e.g. "Data corruption using CONCURRENTLY")
- Known exploits confirmed to exist in the wild
- EOL branches marked, with a synthetic
CVE-EOL-WARNING(CVSS 10.0) prepended to unsupported reports - Verified CVEs — no false positives from automated scraping
What your agent can now do
| Prompt to your agent | Tool used | Result |
|---|---|---|
| "Is PostgreSQL 15.8 safe?" | get_cves("15.8") | EOL/yanked flags, full CVE list sorted by CVSS |
| "Compare 16.3 vs 16.4" | compare_versions("16.3", "16.4") | fixed / new / still-present CVEs |
| "Should I upgrade from 14.10?" | get_upgrade_path("14.10") | recommended target + the CVEs it fixes |
| "Any known exploits right now?" | get_exploits() | all exploitable CVEs, sorted by CVSS |
| "What does this database track?" | get_summary() | stats, EOL and yanked-release overview |
Agent-first design
Every tool returns structured JSON, sorted by CVSS (highest first). Tools flag yanked and EOL state explicitly on the version metadata, and get_upgrade_path distinguishes a safe minor upgrade from a forced major one when a branch is at or near end-of-life — so the agent can give advice, not just data.
See real tool outputs in the live demo.
Quick Start
pip install pg-cve-mcp
pg-cve-mcp
Or with npx (no install):
npx -y pg-cve-mcp
MCP Tools
| Tool | Description |
|---|---|
get_cves(version) | Complete security report for a version: EOL/yanked status, stats, CVEs sorted by CVSS (a synthetic CVE-EOL-WARNING at 10.0 is prepended for unsupported releases) |
compare_versions(v1, v2) | Side-by-side CVE comparison (fixed/new/still present) with yanked & EOL flags |
get_upgrade_path(from_version) | Recommended upgrade (minor by default; major when EOL or next-to-EOL) with fixed CVEs |
get_exploits() | All CVEs with known public exploits, sorted by CVSS |
get_summary() | Overview of the tracked CVE database incl. yanked releases |
Transports
stdio (default)
Run locally over stdio for opencode, Claude Desktop, and other stdio MCP clients:
pip install -e .
pg-cve-mcp
Streamable HTTP (self-hosted)
For remote or enterprise deployments, serve the same tools over HTTP. Run
python run_server.py (or build the Dockerfile); the server listens on $PORT
(default 8000) at path /mcp:
python run_server.py
# MCP endpoint: http://127.0.0.1:8000/mcp
Configure any MCP client with the URL, e.g. in opencode.json:
{
"mcp": {
"pg-cve-mcp": {
"type": "remote",
"url": "http://127.0.0.1:8000/mcp"
}
}
}
Configuration
| Env Var | Default | Description |
|---|---|---|
PG_CVE_MCP_TTL | 86400 | Cache TTL in seconds for CVE data |
PG_CVE_MCP_DATA_URL | https://meob.github.io/PG_CVE/postgresql_cves.json | CVE data source URL |
PORT | 8000 | HTTP port for the Streamable HTTP server (run_server.py) |
Development
Run the test suite and linters:
python -m pytest
ruff check src tests
mypy src
Data Source
Data is fetched from the PG_CVE project's GitHub Pages with local caching. Falls back to a bundled copy if the network is unavailable.
Example Prompts
"What CVEs affect PostgreSQL 16.4?"
"Is PostgreSQL 15.8 safe to use?"
"Compare CVEs in 16.3 vs 16.4"
"What's the upgrade path from PostgreSQL 14.10?"
License
Apache 2.0