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CVE-2026-29787
Information Disclosure in mcp-memory-service (CVE-2026-29787)
Summary
vulnerability in mcp-memory-service (CVE-2026-29787). Risk of unauthorized operations or information disclosure. Exploitable via `GET /api/health/detailed`. Mitigation: upgrade to `10.21.0` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-29787** has been found in mcp-memory-service.
Attackers can target a specific entry point like `GET /api/health/detailed` over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade mcp-memory-service to **10.21.0** or later.
If unsure, ask your IT team or search "mcp-memory-service CVE-2026-29787" on the vendor's site.
CVE-2026-29787 (mcp-memory-service) — CWE-200 /
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Attack surface: GET /api/health/detailed / `require_read_access` / `get_current_user` / `platform`
Patched: `10.21.0` — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**information disclosure** (CWE-200) exists in mcp-memory-service. Attackers reach the vulnerable code path via `GET /api/health/detailed` without authentication.
📍 Affected scope
mcp-memory-service — . Attack surface: GET /api/health/detailed / `require_read_access` / `get_current_user` / `platform`.
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **10.21.0**.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual `GET /api/health/detailed` requests with malformed payloads or SQL meta-characters. Run `grep -r 'mcp-memory-service' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'mcp-memory-service' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `mcp-memory-service` を grep し、稼働しているサービス・バージョンを把握する。
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3Hunt for indicators of compromise detect
grep 'GET /api/health/detailed' /var/log/nginx/access.log | grep -E '(unusual_payload|sqli_pattern)'アクセスログで `GET /api/health/detailed` への異常なリクエスト (不正な認証ヘッダ・SQLメタ文字)を過去 30〜90日分捜索。WAF/SIEM があれば該当パスのアラート発火履歴を確認。
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6Apply patch patch
Upgrade mcp-memory-service to 10.21.0ステージング環境で 10.21.0 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスと、Step 3 で見つけた異常検知の続報チェックを含めること。
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7Post-deployment verification verify
Replay attack against GET /api/health/detailed on staging to confirm patch closes the vectorパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
PyPI
mcp-memory-service
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"10.21.0"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2026-29787
- advisory https://github.com/advisories/GHSA-73hc-m4hx-79pj
- package https://github.com/doobidoo/mcp-memory-service
- package https://pypi.org/project/mcp-memory-service
- web https://github.com/doobidoo/mcp-memory-service/security/advisories/GHSA-73hc-m4hx-79pj
- web https://github.com/doobidoo/mcp-memory-service/commit/18f4323ca92763196aa2922f691dfbeb6bd84e48