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CVE-2025-68481
Vulnerability in fastapi-users (CVE-2025-68481)
Summary
vulnerability in fastapi-users (CVE-2025-68481). Confidential information can be exposed externally. Exploitable via ``state_data``. Mitigation: upgrade to `15.0.2` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2025-68481** has been found in fastapi-users.
Attackers can target a specific entry point like ``state_data`` over the network to misuse the product.
Confidential information can be exposed externally. CVSS score: ?/10.
What to do: upgrade fastapi-users to **15.0.2** or later.
If unsure, ask your IT team or search "fastapi-users CVE-2025-68481" on the vendor's site.
CVE-2025-68481 (fastapi-users) — CWE-285 /
Attack vector: remote (network-reachable) / unauthenticated
Attack surface: `state_data` / `state_secret` / `UserManager` / `BaseUserManager.`
Patched: `15.0.2` — 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-users. Attackers reach the vulnerable code path via ``state_data`` without authentication.
📍 Affected scope
fastapi-users — . Attack surface: `state_data` / `state_secret` / `UserManager` / `BaseUserManager.`.
🔥 Severity
Severity: ?. Confidential information can be exposed externally
🔧 How to fix
Update to **15.0.2**.
🛡️ 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-users' .` 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-users' . | 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-users` 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-users to 15.0.2ステージング環境で 15.0.2 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-users
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"15.0.2"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2025-68481
- advisory https://github.com/advisories/GHSA-5j53-63w8-8625
- package https://github.com/fastapi-users/fastapi-users
- package https://pypi.org/project/fastapi-users
- web https://github.com/fastapi-users/fastapi-users/security/advisories/GHSA-5j53-63w8-8625
- web https://github.com/fastapi-users/fastapi-users/commit/7cf413cd766b9cb0ab323ce424ddab2c0d235932
- web https://github.com/fastapi-users/fastapi-users/blob/bcee8c9b884de31decb5d799aead3974a0b5b158/fastapi_users/router/oauth.py#L111
- web https://github.com/fastapi-users/fastapi-users/blob/bcee8c9b884de31decb5d799aead3974a0b5b158/fastapi_users/router/oauth.py#L57