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GHSA-vxr8-fq34-vvx9
Vulnerability in dompurify (GHSA-vxr8-fq34-vvx9)
Summary
vulnerability in dompurify (GHSA-vxr8-fq34-vvx9). Risk of unauthorized operations or information disclosure. Exploitable via ``TRUSTED_TYPES_POLICY``. Mitigation: upgrade to `3.4.9` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **GHSA-vxr8-fq34-vvx9** has been found in dompurify.
Attackers can target a specific entry point like ``TRUSTED_TYPES_POLICY`` over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade dompurify to **3.4.9** or later.
If unsure, ask your IT team or search "dompurify GHSA-vxr8-fq34-vvx9" on the vendor's site.
GHSA-vxr8-fq34-vvx9 (dompurify) — CWE-693 /
Attack surface: `TRUSTED_TYPES_POLICY` / `RETURN_TRUSTED_TYPE` / `TrustedHTML` / `trustedTypesPolicy`
Patched: `3.4.9` — 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-693) exists in dompurify. Attackers reach the vulnerable code path via ``TRUSTED_TYPES_POLICY`` without authentication.
📍 Affected scope
dompurify — . Attack surface: `TRUSTED_TYPES_POLICY` / `RETURN_TRUSTED_TYPE` / `TrustedHTML` / `trustedTypesPolicy`.
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **3.4.9**.
🛡️ 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 'dompurify' .` 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 'dompurify' . | 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 `dompurify` 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 dompurify to 3.4.9ステージング環境で 3.4.9 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
npm
dompurify
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.9"}]}]