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CVE-2026-46678
medium
CVSS 6.8
SSRF (Server-Side Request Forgery) in pydantic-ai (CVE-2026-46678)
Summary
SSRF in pydantic-ai (CVE-2026-46678). Confidential information can be exposed externally. Exploitable via ``FileUrl``. Mitigation: upgrade to `1.99.0` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-46678** has been found in pydantic-ai.
Attackers can target a specific entry point like ``FileUrl`` over the network to misuse the product.
Confidential information can be exposed externally. CVSS score: 6.8/10.
What to do: upgrade pydantic-ai to **1.99.0** or later.
If unsure, ask your IT team or search "pydantic-ai CVE-2026-46678" on the vendor's site.
CVE-2026-46678 (pydantic-ai) — CWE-918 / CVSS v3 6.8
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Attack surface: `FileUrl` / `ImageUrl` / `AudioUrl` / `VideoUrl`
Patched: `1.99.0` — 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
**SSRF** (CWE-918) exists in pydantic-ai. Attackers reach the vulnerable code path via ``FileUrl`` without authentication.
📍 Affected scope
pydantic-ai — . Attack surface: `FileUrl` / `ImageUrl` / `AudioUrl` / `VideoUrl`.
🔥 Severity
Severity: Medium (CVSS 6.8/10). Confidential information can be exposed externally
🔧 How to fix
Update to **1.99.0**.
🛡️ 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 'pydantic-ai' .` 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 'pydantic-ai' . | 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 `pydantic-ai` 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 pydantic-ai to 1.99.0ステージング環境で 1.99.0 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
pip
pydantic-ai
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.99.0"}]}]
pip
pydantic-ai-slim
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.99.0"}]}]
PyPI
pydantic-ai
[{"type":"ECOSYSTEM","events":[{"introduced":"1.56.0"},{"fixed":"1.99.0"}]}]
PyPI
pydantic-ai-slim
[{"type":"ECOSYSTEM","events":[{"introduced":"1.56.0"},{"fixed":"1.99.0"}]}]