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CVE-2026-53634
medium
CVSS 4.3
Vulnerability in code16/sharp (CVE-2026-53634)
Summary
vulnerability in code16/sharp (CVE-2026-53634). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `9.22.3` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-53634** has been found in code16/sharp.
Risk of unauthorized operations or information disclosure. CVSS score: 4.3/10.
What to do: upgrade code16/sharp to **9.22.3** or later.
If unsure, ask your IT team or search "code16/sharp CVE-2026-53634" on the vendor's site.
CVE-2026-53634 (code16/sharp) — CWE-862 / CVSS v3 4.3
Attack vector: remote (network-reachable) / no user interaction
Patched: `9.22.3` — apply immediately
Workaround: Remove or disable Quick Creation Command handlers (quickCreationCommandHandler()) on any entity list where unauthorized access is a concern, until an upgrade is possible.
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-862) exists in code16/sharp.
📍 Affected scope
code16/sharp — .
🔥 Severity
Severity: Medium (CVSS 4.3/10). Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **9.22.3**.
🛡️ Workaround
Workaround: Remove or disable Quick Creation Command handlers (quickCreationCommandHandler()) on any entity list where unauthorized access is a concern, until an upgrade is possible.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'code16/sharp' .` 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
-
1Identify exposure identify
grep -r 'code16/sharp' . | 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 `code16/sharp` 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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5Apply temporary workaround mitigate
Remove or disable Quick Creation Command handlers (quickCreationCommandHandler()) on any entity list where unauthorized access is a concern, until an upgrade is possible.パッチが適用されるまでの応急処置として、Remove or disable Quick Creation Command handlers (quickCreationCommandHandler()) on any entity list where unauthorized access is a concern, until an upgrade is possible. を実施。回避策の副作用 (機能低下) を確認した上で。
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6Apply patch patch
Upgrade code16/sharp to 9.22.3ステージング環境で 9.22.3 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
composer
code16/sharp
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.22.3"}]}]