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CVE-2025-29606
Vulnerability in libp2p (CVE-2025-29606)
Summary
vulnerability in libp2p (CVE-2025-29606). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `0.2.3` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2025-29606** has been found in libp2p.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade libp2p to **0.2.3** or later.
If unsure, ask your IT team or search "libp2p CVE-2025-29606" on the vendor's site.
CVE-2025-29606 (libp2p) — CWE-770 /
Attack vector: remote (network-reachable) / no user interaction
Patched: `0.2.3` — 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
**A vulnerability** (CWE-770) exists in libp2p.
📍 Affected scope
libp2p — .
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **0.2.3**.
🛡️ 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 request patterns matching this CVE's known IOCs. Run `grep -r 'libp2p' .` 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 'libp2p' . | 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 `libp2p` 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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6Apply patch patch
Upgrade libp2p to 0.2.3ステージング環境で 0.2.3 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
Confirm patched version is live in production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
libp2p
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.3"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2025-29606
- advisory https://github.com/advisories/GHSA-x8c6-gj59-6rx8
- package https://github.com/libp2p/py-libp2p
- package https://pypi.org/project/libp2p
- web https://github.com/libp2p/py-libp2p/issues/526
- web https://github.com/libp2p/py-libp2p/pull/531/files
- web https://github.com/libp2p/py-libp2p/commit/e150d3153af30530ce61d751bc166e099f1ead7a
- web https://github.com/libp2p/py-libp2p/compare/v0.2.2...v0.2.3