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CVE-2026-44017 high CVSS 7.5

Path Traversal in docling (CVE-2026-44017)

Summary

Path traversal in docling (CVE-2026-44017). Successful exploitation can lead to full system takeover. Exploitable via SecurityError. Mitigation: upgrade to 2.91.0 or later.

Original description

The description as published by the source.

Impact

In versions < 2.91.0, The EasyOCR model download functionality extracted ZIP archives without validating member paths, enabling Zip Slip attacks. If an attacker could compromise the model download source (via supply chain attack, DNS spoofing, or MITM), they could write arbitrary files to any location writable by the process, potentially achieving:

  • Remote code execution by overwriting Python files or system binaries
  • Persistent backdoors by modifying startup scripts or SSH keys
  • Data corruption or system compromise

Patches

Fixed in version 2.91.0. The extraction process now validates each archive member path using os.path.realpath() to ensure it remains within the target directory, raising a SecurityError for any path traversal attempts.

Workarounds

Ensure model downloads occur over secure, authenticated channels. Use integrity verification (checksums) for downloaded models. Run the application with minimal file system permissions.

References

Source: GitHub Security Advisories (Global) NVD GitHub Advisory

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2026-44017 has been found in docling.
Attackers can target a specific entry point like SecurityError over the network to misuse the product.
Successful exploitation can lead to full system takeover. CVSS score: 7.5/10.
What to do: upgrade docling to 2.91.0 or later.
If unsure, ask your IT team or search "docling CVE-2026-44017" on the vendor's site.

CVE-2026-44017 (docling) — CWE-22 / CVSS v3 7.5
Attack vector: remote (network-reachable) / unauthenticated
Attack surface: SecurityError
Patched: 2.91.0 — apply immediately
Workaround: Ensure model downloads occur over secure, authenticated channels.
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 docling. Attackers reach the vulnerable code path via SecurityError without authentication.

📍 Affected scope

Check the vendor advisory for the affected versions of docling. Attack surface: SecurityError.

🔥 Severity

Severity: High (CVSS 7.5/10). Successful exploitation can lead to full system takeover.

🔧 How to fix

Update to 2.91.0.

🛡️ Workaround

Workaround: Ensure model downloads occur over secure, authenticated channels.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'docling' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify 
    grep -r 'docling' . | 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 docling を grep し、稼働しているサービス・バージョンを把握する。

  2. 2
    Apply temporary workaround mitigate 
    Ensure model downloads occur over secure, authenticated channels.

    パッチが適用されるまでの応急処置として、Ensure model downloads occur over secure, authenticated channels. を実施。回避策の副作用 (機能低下) を確認した上で。

  3. 3
    Apply patch patch 
    Upgrade docling to 2.91.0

    ステージング環境で 2.91.0 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を含めること。

  4. 4
    Post-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。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

pip docling
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.91.0"}]}]
PyPI docling
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.91.0"}]}]

References

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