# nist-nvd-mcp-server MCP Server

Search and audit NIST NVD CVEs by keyword, severity, CWE, CISA KEV status, and CPE.

**Publisher claimed.** No tool list reported, and Pod has not connected to this server.

## Status

Pod has not dialled nist-nvd-mcp-server yet, so everything on this page is what its publisher reported rather than what we observed. Registries describe servers; they do not connect to them. Until a check runs, treat the tool list below as a claim.

## Connect

Published as `@cyanheads/nist-nvd-mcp-server` on npm. Runs locally.

## Known issues

**44 problems reported by people outside the maintainer team.** Issues filed by the project's own owners, members and collaborators are excluded — those are release checklists and internal refactors, not things that will go wrong for you. Showing 12.

### Most discussed

### feat(nvd_search_cves): signal that more results remain on a partial page

`nvd_search_cves` gives a caller no indication that more results exist beyond the page it just returned. `nvd_search_cpes` does:

```ts
// src/mcp-server/tools/definitions/nvd-search-cpes.tool.ts:170
} else if (result.totalResults > result.offset + result.returned) {
  ctx.enrich.notice(
    `Results truncated — ${result.totalResults} entries match; set offset to ${result.offset + result.returned} for the next page.`,
  );
}
```

The CVE search tool emits `total` and `offset` in its enrichment b

[Read the thread](https://github.com/cyanheads/nist-nvd-mcp-server/issues/36) · 2026-07-27 · closed · 3 comments

### bug(nvd_search_cves): empty page always reported as "offset past the end", whatever the offset

### Server version

0.1.16

### mcp-ts-core version

0.11.0

### Runtime

Bun

### Runtime version

Bun 1.3.x

### Transport

stdio

### Description

`nvd_search_cves` emits the past-the-end pagination notice for *any* empty page where `totalResults > 0`, without checking whether the offset is actually past the end:

```ts
// src/mcp-server/tools/definitions/nvd-search-cves.tool.ts:493
if (result.cves.length === 0) {
  if (result.totalResults > 0) {
    ctx.enrich.notice(
      `Offset ${result.

[Read the thread](https://github.com/cyanheads/nist-nvd-mcp-server/issues/34) · 2026-07-27 · closed · 3 comments

### feat(enrichment): surface active filter context in nvd_search_cves and nvd_audit_cpe

Two tools omit active filter context needed to diagnose zero-result or unexpectedly-narrow result sets without re-reading the caller's own input.

**nvd_search_cves** — a zero-result response reports the query's totals but not which filter (keyword, severity/severityVersion, CWE, date range, KEV-only) drove the result to empty.

**nvd_audit_cpe** — when `severityMin` is active, the response reports `totalCount` (NVD's pre-filter count) and `returned` (post-filter count) with no explanation of th

[Read the thread](https://github.com/cyanheads/nist-nvd-mcp-server/issues/19) · 2026-05-29 · closed · 3 comments

### refactor(nvd_get_cve): brief mode rebuilds toBriefCve's row shape inline

`nvd_get_cve`'s `brief: true` branch hand-builds each row instead of calling the service's `toBriefCve()`, so two places construct the same shape:

```ts
// src/mcp-server/tools/definitions/nvd-get-cve.tool.ts:139
cves: result.cves.map((cve) => {
  const description = briefDescription(cve.descriptions);
  return {
    cveId: cve.cveId,
    vulnStatus: cve.vulnStatus,
    published: cve.published,
    ...(description && { description }),
    ...(cve.severity && { severity: cve.severity }),
    ..

[Read the thread](https://github.com/cyanheads/nist-nvd-mcp-server/issues/35) · 2026-07-27 · closed · 2 comments

### bug(nvd-cve-service): invalid_cve_id_format and cve_not_found ship no recovery hint

### Server version

0.1.14

### mcp-ts-core version

0.10.14

### Runtime

Bun

### Runtime version

Bun 1.3.14

### Transport

http

### Description

`nvd_get_cve` and `nvd_get_cve_history` declare `recovery` text for `invalid_cve_id_format` and `cve_not_found`, but neither reaches the caller. Both are thrown from `NvdCveService` via bare `validationError()` / `notFound()` rather than `ctx.fail`, so `data.recovery.hint` is never populated and no `Recovery:` line is mirrored into `content[]`.

E

[Read the thread](https://github.com/cyanheads/nist-nvd-mcp-server/issues/33) · 2026-07-27 · closed · 2 comments

### Most recent

### feat(nvd_get_cve, nvd_audit_cpe): resolve NVD source identifiers instead of emitting raw GUIDs

### Use case

`weaknesses[].source` and `references[].source` carry NVD's raw source identifier. For a CNA-contributed entry that is a readable email (`security@apache.org`, `product-security@apple.com`), but the two most common contributors on modern records are opaque GUIDs:

| Identifier | Resolves to |
|:---|:---|
| `af854a3a-2127-422b-91ae-364da2661108` | `CVE` (MITRE's CVE Program ADP) |
| `134c704f-9b21-4f2e-91b3-4a467353bcc0` | `CISA-ADP` |

Across a 34-CVE `nvd_get_cve` full-mode call, 

[Read the thread](https://github.com/cyanheads/nist-nvd-mcp-server/issues/46) · 2026-07-31 · closed · 1 comment

### bug(nvd_audit_cpe, nvd_search_cpes): NVD's CPE parameter rejection surfaces as nvd_request_rejected with no recovery hint

### Server version

0.1.17

### mcp-ts-core version

0.11.0

### Runtime

Bun

### Runtime version

Bun 1.3.14

### Transport

HTTP (Streamable HTTP)

### OS

macOS 26.1

### Description

`nvd_audit_cpe` and `nvd_search_cpes` validate that a CPE string starts with `cpe:2.3:` and stop there. A string that clears that prefix check but is not a complete CPE — `cpe:2.3:a:zzznotavendor` — reaches NVD, which answers HTTP 404 with `Invalid cpeName parameter, see documentation.` when passed as `cpeName`

[Read the thread](https://github.com/cyanheads/nist-nvd-mcp-server/issues/45) · 2026-07-31 · closed · 1 comment

### feat(nvd_search_cves): expose NVD's keywordExactMatch for phrase search

### Use case

`keyword` maps to NVD's `keywordSearch`, which ANDs the supplied words and matches them anywhere in a description independently. The parameter description already states this ("AND-semantics across words") but the tool exposes no way to opt out, so a multi-word phrase cannot be searched as a phrase.

NVD's `keywordExactMatch` flag switches the same parameter to exact-phrase matching. It is a valueless flag on `cves/2.0`, alongside `hasKev` and `noRejected`, both of which this serve

[Read the thread](https://github.com/cyanheads/nist-nvd-mcp-server/issues/44) · 2026-07-31 · closed · 1 comment

### docs(design): error contracts documented as InvalidParams; the wire returns ValidationError

### Server version

0.1.17

### mcp-ts-core version

0.11.0

### Runtime

Bun

### Runtime version

Bun 1.3.14

### Transport

HTTP (Streamable HTTP)

### OS

macOS 26.1

### Description

`docs/design.md` documents every validation failure as `InvalidParams`, in both the tool summary table (lines 9–13) and the per-tool error contract blocks (lines 244, 292, 295, 345, 348, 351, 393, 429). The definitions use `JsonRpcErrorCode.ValidationError` and the wire returns `-32007`. 0.1.7 changed the contr

[Read the thread](https://github.com/cyanheads/nist-nvd-mcp-server/issues/43) · 2026-07-31 · closed · 1 comment

### feat(nvd_get_cve_history): no notice on an empty or partial page, unlike the other four tools

### Use case

`nvd_get_cve_history` is the only tool of the five with no `notice` field in its enrichment. `nvd_search_cves`, `nvd_search_cpes`, and `nvd_audit_cpe` all distinguish an offset past the end from an empty page inside a range NVD says has matches, and all three name the offset that reaches the next page. History paginates over the same shape and says nothing.

An empty page renders as a bare heading with no explanation:

```
## Change History: CVE-2014-0160
```

```json
{ "cveId": "C

[Read the thread](https://github.com/cyanheads/nist-nvd-mcp-server/issues/42) · 2026-07-31 · closed · 1 comment

### bug(nvd-cve-service): cpe_not_found ships no recovery hint

### Server version

0.1.17

### mcp-ts-core version

0.11.0

### Runtime

Bun

### Runtime version

Bun 1.3.14

### Transport

HTTP (Streamable HTTP)

### OS

macOS 26.1

### Description

`nvd_audit_cpe` declares a recovery for `cpe_not_found` — "Use nvd_search_cpes to verify the exact CPE name exists in the NVD dictionary before auditing" — but the `notFound(...)` throw in `auditCpe` omits `...ctx.recoveryFor('cpe_not_found')`, so the hint never reaches the wire and `content[0].text` carries no

[Read the thread](https://github.com/cyanheads/nist-nvd-mcp-server/issues/41) · 2026-07-31 · closed · 1 comment

### bug(nvd_audit_cpe): a product with no CVEs errors as cpe_not_found instead of reporting a clean audit

### Server version

0.1.17

### mcp-ts-core version

0.11.0

### Runtime

Bun

### Runtime version

Bun 1.3.14

### Transport

HTTP (Streamable HTTP)

### OS

macOS 26.1

### Description

`auditCpe` throws `cpe_not_found` whenever NVD returns `totalResults === 0` for a `cpeName`, with the message "The CPE may be misspelled or not in NVD." A CPE that exists in the dictionary and simply has no vulnerabilities is indistinguishable from a typo, so the most valuable answer a vulnerability audit can g

[Read the thread](https://github.com/cyanheads/nist-nvd-mcp-server/issues/40) · 2026-07-31 · closed · 1 comment

[See all 18 reports Pod holds for nist-nvd-mcp-server](/mcp/nist-nvd-mcp-server/issues) — of 44 qualified upstream.

## Firsthand observations

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