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CVE-2025-47273
Path Traversal in setuptools (CVE-2025-47273)
Summary
path traversal in setuptools (CVE-2025-47273). Successful exploitation can lead to full system takeover. Exploitable via ``PackageIndex``. Mitigation: upgrade to `78.1.1` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2025-47273** has been found in setuptools.
Attackers can target a specific entry point like ``PackageIndex`` over the network to misuse the product.
Successful exploitation can lead to full system takeover. CVSS score: ?/10.
What to do: upgrade setuptools to **78.1.1** or later.
If unsure, ask your IT team or search "setuptools CVE-2025-47273" on the vendor's site.
CVE-2025-47273 (setuptools) — CWE-22 /
Attack vector: remote (network-reachable) / no user interaction
Attack surface: `PackageIndex` / `tmpdir` / `name`
Patched: `78.1.1` — 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
**Path traversal** (CWE-22) exists in setuptools. Attackers reach the vulnerable code path via ``PackageIndex`` without authentication.
📍 Affected scope
setuptools — . Attack surface: `PackageIndex` / `tmpdir` / `name`.
🔥 Severity
Severity: ?. Successful exploitation can lead to full system takeover
🔧 How to fix
Update to **78.1.1**.
🛡️ 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 'setuptools' .` 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 'setuptools' . | 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 `setuptools` 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 setuptools to 78.1.1ステージング環境で 78.1.1 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
Bitnami
setuptools
[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"78.1.1"}]}]
PyPI
setuptools
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"78.1.1"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2025-47273
- advisory https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/47xxx/CVE-2025-47273.json
- package https://github.com/pypa/setuptools
- web https://github.com/pypa/setuptools/blob/6ead555c5fb29bc57fe6105b1bffc163f56fd558/setuptools/package_index.py#L810C1-L825C88
- web https://github.com/pypa/setuptools/commit/250a6d17978f9f6ac3ac887091f2d32886fbbb0b
- web https://github.com/pypa/setuptools/issues/4946
- web https://github.com/pypa/setuptools/security/advisories/GHSA-5rjg-fvgr-3xxf
- web https://lists.debian.org/debian-lts-announce/2025/05/msg00035.html
- web https://github.com/pypa/advisory-database/tree/main/vulns/setuptools/PYSEC-2025-49.yaml