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CVE-2026-44541
Cross-Site Scripting (XSS) in ethyca-fides (CVE-2026-44541)
Summary
cross-site scripting in ethyca-fides (CVE-2026-44541). Risk of unauthorized operations or information disclosure. Exploitable via ``fides.js``. Mitigation: upgrade to `2.84.5` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-44541** has been found in ethyca-fides.
Attackers can target a specific entry point like ``fides.js`` over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade ethyca-fides to **2.84.5** or later.
If unsure, ask your IT team or search "ethyca-fides CVE-2026-44541" on the vendor's site.
CVE-2026-44541 (ethyca-fides) — CWE-79 /
Attack surface: `fides.js` / `true` / `allowHTMLDescription` / `nh3`
Patched: `2.84.5` — apply immediately
Workaround: Set `FIDES_PRIVACY_CENTER__ALLOW_HTML_DESCRIPTION=false` on the Privacy Center container(s) and redeploy.
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
**Cross-site scripting (XSS)** (CWE-79) exists in ethyca-fides. Attackers reach the vulnerable code path via ``fides.js`` without authentication.
📍 Affected scope
ethyca-fides — . Attack surface: `fides.js` / `true` / `allowHTMLDescription` / `nh3`.
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **2.84.5**.
🛡️ Workaround
Workaround: Set `FIDES_PRIVACY_CENTER__ALLOW_HTML_DESCRIPTION=false` on the Privacy Center container(s) and redeploy.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'ethyca-fides' .` 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 'ethyca-fides' . | 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 `ethyca-fides` 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
Set `FIDES_PRIVACY_CENTER__ALLOW_HTML_DESCRIPTION=false` on the Privacy Center container(s) and redeploy.パッチが適用されるまでの応急処置として、Set `FIDES_PRIVACY_CENTER__ALLOW_HTML_DESCRIPTION=false` on the Privacy Center container(s) and redeploy. 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 ethyca-fides to 2.84.5ステージング環境で 2.84.5 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
ethyca-fides
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.84.5"}]}]
PyPI
ethyca-fides
[{"type":"ECOSYSTEM","events":[{"introduced":"2.33.0"},{"fixed":"2.84.5"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2026-44541
- package https://github.com/ethyca/fides
- web https://github.com/ethyca/fides/security/advisories/GHSA-5qrq-9645-g5g2
- web https://github.com/ethyca/fides/commit/67e43b10b1096c7f84d5c0eeba08ee3b7846b7cd
- web https://github.com/ethyca/fides/releases/tag/2.84.5
- web https://github.com/advisories/GHSA-5qrq-9645-g5g2