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CVE-2026-6428
high
CVSS 7.6
SQL Injection in sqli (CVE-2026-6428)
Summary
SQL injection in sqli (CVE-2026-6428). Confidential information can be exposed externally. Exploitable via `GET /cgi-bin/koha/reports/catalogue_out.pl`.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-6428** has been found in sqli.
Attackers can target a specific entry point like `GET /cgi-bin/koha/reports/catalogue_out.pl` over the network to misuse the product.
Confidential information can be exposed externally. CVSS score: 7.6/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "sqli CVE-2026-6428" on the vendor's site.
CVE-2026-6428 (sqli) — CWE-89 / CVSS v3 7.6
Attack vector: remote (network-reachable) / no user interaction
Attack surface: GET /cgi-bin/koha/reports/catalogue_out.pl
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 sqli. Attackers reach the vulnerable code path via `GET /cgi-bin/koha/reports/catalogue_out.pl` without authentication.
📍 Affected scope
sqli — . Attack surface: GET /cgi-bin/koha/reports/catalogue_out.pl.
🔥 Severity
Severity: High (CVSS 7.6/10). Confidential information can be exposed externally
🔧 How to fix
Update to the patched release per vendor advisory.
🛡️ 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 `GET /cgi-bin/koha/reports/catalogue_out.pl` requests with malformed payloads or SQL meta-characters. Run `grep -r 'sqli' .` 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 'sqli' . | 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 `sqli` 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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3Hunt for indicators of compromise detect
grep 'GET /cgi-bin/koha/reports/catalogue_out.pl' /var/log/nginx/access.log | grep -E '(unusual_payload|sqli_pattern)'アクセスログで `GET /cgi-bin/koha/reports/catalogue_out.pl` への異常なリクエスト (不正な認証ヘッダ・SQLメタ文字)を過去 30〜90日分捜索。WAF/SIEM があれば該当パスのアラート発火履歴を確認。
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7Post-deployment verification verify
Replay attack against GET /cgi-bin/koha/reports/catalogue_out.pl on staging to confirm patch closes the vector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。