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CVE-2021-4472
Vulnerability in python-mistralclient (CVE-2021-4472)
Summary
vulnerability in python-mistralclient (CVE-2021-4472). Confidential information can be exposed externally. Mitigation: upgrade to `4.3.0` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2021-4472** has been found in python-mistralclient.
Confidential information can be exposed externally. CVSS score: ?/10.
What to do: upgrade python-mistralclient to **4.3.0** or later.
If unsure, ask your IT team or search "python-mistralclient CVE-2021-4472" on the vendor's site.
CVE-2021-4472 (python-mistralclient) — CWE-73 /
Attack vector: remote (network-reachable) / no user interaction
Patched: `4.3.0` — 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
**A vulnerability** (CWE-73) exists in python-mistralclient.
📍 Affected scope
python-mistralclient — .
🔥 Severity
Severity: ?. Confidential information can be exposed externally
🔧 How to fix
Update to **4.3.0**.
🛡️ 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 request patterns matching this CVE's known IOCs. Run `grep -r 'python-mistralclient' .` 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 'python-mistralclient' . | 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 `python-mistralclient` 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 python-mistralclient to 4.3.0ステージング環境で 4.3.0 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
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
python-mistralclient
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.0"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2021-4472
- advisory https://github.com/advisories/GHSA-75hx-6r6j-hw56
- package https://opendev.org/openstack/mistral-dashboard
- package https://pypi.org/project/python-mistralclient
- web https://access.redhat.com/security/cve/CVE-2021-4472
- web https://bugs.launchpad.net/horizon/+bug/1931558
- web https://bugzilla.redhat.com/show_bug.cgi?id=2417321
- web https://lists.debian.org/debian-lts-announce/2025/12/msg00002.html
- web https://lists.debian.org/debian-lts-announce/2025/12/msg00003.html
- web https://review.opendev.org/c/openstack/mistral-dashboard/+/800952
- web https://review.opendev.org/c/openstack/python-mistralclient/+/800950