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CVE-2026-33514
medium
CVSS 4.3
Vulnerability in discourse (CVE-2026-33514)
Summary
vulnerability in discourse (CVE-2026-33514). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `2026.1.4, 2026.3.1, 2026.4.1` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-33514** has been found in discourse.
Risk of unauthorized operations or information disclosure. CVSS score: 4.3/10.
What to do: upgrade discourse to **2026.1.4, 2026.3.1, 2026.4.1** or later.
If unsure, ask your IT team or search "discourse CVE-2026-33514" on the vendor's site.
CVE-2026-33514 (discourse) — CWE-862 / CVSS v3 4.3
Attack vector: remote (network-reachable) / no user interaction
Patched: `2026.1.4, 2026.3.1, 2026.4.1` — 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-862) exists in discourse.
📍 Affected scope
discourse — .
🔥 Severity
Severity: Medium (CVSS 4.3/10). Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **2026.1.4, 2026.3.1, 2026.4.1**.
🛡️ 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 'discourse' .` 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 'discourse' . | 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 `discourse` 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 discourse to 2026.1.4, 2026.3.1, 2026.4.1ステージング環境で 2026.1.4, 2026.3.1, 2026.4.1 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
Bitnami
discourse
[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.1.4"},{"introduced":"2026.3.0"},{"fixed":"2026.3.1"},{"introduced":"2026.4.0"},{"fixed":"2026.4.1"}]}]