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MGASA-2026-0194
Vulnerability in roundcubemail (MGASA-2026-0194)
Summary
vulnerability in roundcubemail (MGASA-2026-0194). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `1.6.16-1.mga9` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **MGASA-2026-0194** has been found in roundcubemail.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade roundcubemail to **1.6.16-1.mga9** or later.
If unsure, ask your IT team or search "roundcubemail MGASA-2026-0194" on the vendor's site.
MGASA-2026-0194 (roundcubemail) —
Patched: `1.6.16-1.mga9` — 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** (unclassified) exists in roundcubemail.
📍 Affected scope
roundcubemail — .
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **1.6.16-1.mga9**.
🛡️ 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 'roundcubemail' .` 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 'roundcubemail' . | 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 `roundcubemail` 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 roundcubemail to 1.6.16-1.mga9ステージング環境で 1.6.16-1.mga9 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
Mageia:9
roundcubemail
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.16-1.mga9"}]}]
References
- advisory https://advisories.mageia.org/MGASA-2026-0194.html
- report https://bugs.mageia.org/show_bug.cgi?id=35599
- web https://roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1
- web https://lists.debian.org/debian-security-announce/2026/msg00212.html
- web https://lists.fedoraproject.org/archives/list/[email protected]/message/HYFEOBDMYY7JRKWNFYSC7KT2TT2XXNBE/
- web https://www.openwall.com/lists/oss-security/2026/06/03/17