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CVE-2026-54651 medium CVSS 5.5

Vulnerability in pypdf-project (CVE-2026-54651)

Summary

vulnerability in pypdf-project (CVE-2026-54651). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `6.13.1` or later.

AI summary snake-internal / snake-material-v2

A vulnerability tracked as **CVE-2026-54651** has been found in pypdf-project. Risk of unauthorized operations or information disclosure. CVSS score: 5.5/10. What to do: upgrade pypdf-project to **6.13.1** or later. If unsure, ask your IT team or search "pypdf-project CVE-2026-54651" on the vendor's site.
CVE-2026-54651 (pypdf-project) — CWE-835 / CVSS v3 5.5 Attack vector: local / no user interaction Patched: `6.13.1` — 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-835) exists in pypdf-project.
📍 Affected scope
pypdf-project — .
🔥 Severity
Severity: Medium (CVSS 5.5/10). Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **6.13.1**.
🛡️ 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 'pypdf-project' .` 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

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

  2. 6
    Apply patch patch
    Upgrade pypdf-project to 6.13.1

    ステージング環境で 6.13.1 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。

  3. 7
    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 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。

References

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