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CVE-2026-41883
high
CVSS 8.1
Vulnerability in org.omnifaces:omnifaces (CVE-2026-41883)
Summary
vulnerability in org.omnifaces:omnifaces (CVE-2026-41883). Successful exploitation can lead to full system takeover. Exploitable via ``CDNResourceHandler``. Mitigation: upgrade to `5.2.3` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-41883** has been found in org.omnifaces:omnifaces.
Attackers can target a specific entry point like ``CDNResourceHandler`` over the network to misuse the product.
Successful exploitation can lead to full system takeover. CVSS score: 8.1/10.
What to do: upgrade org.omnifaces:omnifaces to **5.2.3** or later.
If unsure, ask your IT team or search "org.omnifaces:omnifaces CVE-2026-41883" on the vendor's site.
CVE-2026-41883 (org.omnifaces:omnifaces) — CWE-917 / CVSS v3 8.1
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Attack surface: `CDNResourceHandler`
Patched: `5.2.3` — 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-917) exists in org.omnifaces:omnifaces. Attackers reach the vulnerable code path via ``CDNResourceHandler`` without authentication.
📍 Affected scope
org.omnifaces:omnifaces — . Attack surface: `CDNResourceHandler`.
🔥 Severity
Severity: High (CVSS 8.1/10). Successful exploitation can lead to full system takeover
🔧 How to fix
Update to **5.2.3**.
🛡️ 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 'org.omnifaces:omnifaces' .` 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 'org.omnifaces:omnifaces' . | 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 `org.omnifaces:omnifaces` 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 org.omnifaces:omnifaces to 5.2.3ステージング環境で 5.2.3 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
maven
org.omnifaces:omnifaces
[{"type":"ECOSYSTEM","events":[{"introduced":"5.0-M1"},{"fixed":"5.2.3"}]}]