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CVE-2026-11986 medium CVSS 4.9

Vulnerability in org.keycloak:keycloak-rest-admin-ui-ext (CVE-2026-11986)

Summary

vulnerability in org.keycloak:keycloak-rest-admin-ui-ext (CVE-2026-11986). Data can be tampered with by attackers. Mitigation: upgrade to `26.7.0` or later.

AI summary snake-internal / snake-material-v2

A vulnerability tracked as **CVE-2026-11986** has been found in org.keycloak:keycloak-rest-admin-ui-ext. Data can be tampered with by attackers. CVSS score: 4.9/10. What to do: upgrade org.keycloak:keycloak-rest-admin-ui-ext to **26.7.0** or later. If unsure, ask your IT team or search "org.keycloak:keycloak-rest-admin-ui-ext CVE-2026-11986" on the vendor's site.
CVE-2026-11986 (org.keycloak:keycloak-rest-admin-ui-ext) — CWE-425 / CVSS v3 4.9 Attack vector: remote (network-reachable) / no user interaction Patched: `26.7.0` — 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-425) exists in org.keycloak:keycloak-rest-admin-ui-ext.
📍 Affected scope
org.keycloak:keycloak-rest-admin-ui-ext — .
🔥 Severity
Severity: Medium (CVSS 4.9/10). Data can be tampered with by attackers
🔧 How to fix
Update to **26.7.0**.
🛡️ 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.keycloak:keycloak-rest-admin-ui-ext' .` 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 'org.keycloak:keycloak-rest-admin-ui-ext' . | 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.keycloak:keycloak-rest-admin-ui-ext` 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 org.keycloak:keycloak-rest-admin-ui-ext to 26.7.0

    ステージング環境で 26.7.0 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。

Affected packages

maven org.keycloak:keycloak-rest-admin-ui-ext
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"26.7.0"}]}]

References

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