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CVE-2026-4324
medium
CVSS 5.4
SQL Injection in katello (CVE-2026-4324)
Summary
SQL injection in katello (CVE-2026-4324). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `4.19.1` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-4324** has been found in katello.
Risk of unauthorized operations or information disclosure. CVSS score: 5.4/10.
What to do: upgrade katello to **4.19.1** or later.
If unsure, ask your IT team or search "katello CVE-2026-4324" on the vendor's site.
CVE-2026-4324 (katello) — CWE-89 / CVSS v3 5.4
Attack vector: remote (network-reachable) / no user interaction
Patched: `4.19.1` — 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
**SQL injection** (CWE-89) exists in katello.
📍 Affected scope
katello — .
🔥 Severity
Severity: Medium (CVSS 5.4/10). Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **4.19.1**.
🛡️ 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 'katello' .` 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 'katello' . | 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 `katello` 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 katello to 4.19.1ステージング環境で 4.19.1 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
rubygems
katello
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.19.1"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2026-4324
- package https://github.com/Katello/katello
- web https://access.redhat.com/errata/RHSA-2026:22326
- web https://access.redhat.com/errata/RHSA-2026:5968
- web https://access.redhat.com/errata/RHSA-2026:5970
- web https://access.redhat.com/security/cve/CVE-2026-4324
- web https://bugzilla.redhat.com/show_bug.cgi?id=2448349
- web https://github.com/Katello/katello/commit/a0a793b08d4f0a897ee985d79a687ad043f99e57
- web https://github.com/advisories/GHSA-fwj4-6wgp-mpxm