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CVE-2025-14546
Vulnerability in fastapi-sso (CVE-2025-14546)
Summary
vulnerability in fastapi-sso (CVE-2025-14546). Confidential information can be exposed externally. Mitigation: upgrade to `0.19.0` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2025-14546** has been found in fastapi-sso.
Confidential information can be exposed externally. CVSS score: ?/10.
What to do: upgrade fastapi-sso to **0.19.0** or later.
If unsure, ask your IT team or search "fastapi-sso CVE-2025-14546" on the vendor's site.
CVE-2025-14546 (fastapi-sso) — CWE-285 /
Attack vector: remote (network-reachable)
Patched: `0.19.0` — 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-285) exists in fastapi-sso.
📍 Affected scope
fastapi-sso — .
🔥 Severity
Severity: ?. Confidential information can be exposed externally
🔧 How to fix
Update to **0.19.0**.
🛡️ 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 'fastapi-sso' .` 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 'fastapi-sso' . | 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 `fastapi-sso` 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 fastapi-sso to 0.19.0ステージング環境で 0.19.0 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
fastapi-sso
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.19.0"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2025-14546
- advisory https://github.com/advisories/GHSA-hp6r-r9vc-q8wx
- package https://github.com/tomasvotava/fastapi-sso
- package https://pypi.org/project/fastapi-sso
- web https://github.com/tomasvotava/fastapi-sso/issues/266
- web https://github.com/tomasvotava/fastapi-sso/commit/6117d1a5ad498ba57d671e8a059ebe20db5abe02
- web https://security.snyk.io/vuln/SNYK-PYTHON-FASTAPISSO-14386403