← Back
CVE-2026-43827
medium
CVSS 6.5
Vulnerability in org.apache.shiro:shiro-core (CVE-2026-43827)
Summary
vulnerability in org.apache.shiro:shiro-core (CVE-2026-43827). Confidential information can be exposed externally. Mitigation: upgrade to `3.0.0-alpha-2` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-43827** has been found in org.apache.shiro:shiro-core.
Confidential information can be exposed externally. CVSS score: 6.5/10.
What to do: upgrade org.apache.shiro:shiro-core to **3.0.0-alpha-2** or later.
If unsure, ask your IT team or search "org.apache.shiro:shiro-core CVE-2026-43827" on the vendor's site.
CVE-2026-43827 (org.apache.shiro:shiro-core) — CWE-384 / CVSS v3 6.5
Attack vector: remote (network-reachable) / unauthenticated
Patched: `3.0.0-alpha-2` — 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-384) exists in org.apache.shiro:shiro-core.
📍 Affected scope
org.apache.shiro:shiro-core — .
🔥 Severity
Severity: Medium (CVSS 6.5/10). Confidential information can be exposed externally
🔧 How to fix
Update to **3.0.0-alpha-2**.
🛡️ 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.apache.shiro:shiro-core' .` 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 'org.apache.shiro:shiro-core' . | 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.apache.shiro:shiro-core` を grep し、稼働しているサービス・バージョンを把握する。
-
6Apply patch patch
Upgrade org.apache.shiro:shiro-core to 3.0.0-alpha-2ステージング環境で 3.0.0-alpha-2 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。
-
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.apache.shiro:shiro-core
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.0-alpha-2"}]}]