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UBUNTU-CVE-2026-46446
Vulnerability in sogo (UBUNTU-CVE-2026-46446)
Summary
vulnerability in sogo (UBUNTU-CVE-2026-46446). Confidential information can be exposed externally. Mitigation: upgrade to `2.2.17a-1.1ubuntu0.1~esm1` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **UBUNTU-CVE-2026-46446** has been found in sogo.
Confidential information can be exposed externally. CVSS score: ?/10.
What to do: upgrade sogo to **2.2.17a-1.1ubuntu0.1~esm1** or later.
If unsure, ask your IT team or search "sogo UBUNTU-CVE-2026-46446" on the vendor's site.
UBUNTU-CVE-2026-46446 (sogo) —
Attack vector: remote (network-reachable) / no user interaction
Patched: `2.2.17a-1.1ubuntu0.1~esm1` — 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 sogo.
📍 Affected scope
sogo — .
🔥 Severity
Severity: ?. Confidential information can be exposed externally
🔧 How to fix
Update to **2.2.17a-1.1ubuntu0.1~esm1**.
🛡️ 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 'sogo' .` 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 'sogo' . | 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 `sogo` 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 sogo to 2.2.17a-1.1ubuntu0.1~esm1ステージング環境で 2.2.17a-1.1ubuntu0.1~esm1 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
Ubuntu:16.04:LTS
sogo
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS
sogo
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS
sogo
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
sogo
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:25.10
sogo
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
sogo
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:16.04:LTS
sogo
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.17a-1.1ubuntu0.1~esm1"}]}]
Ubuntu:Pro:18.04:LTS
sogo
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.10-1ubuntu0.1~esm1"}]}]
Ubuntu:Pro:20.04:LTS
sogo
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.0-1ubuntu0.1~esm1"}]}]
Ubuntu:Pro:22.04:LTS
sogo
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.5.1-1ubuntu0.1~esm1"}]}]
Ubuntu:Pro:26.04:LTS
sogo
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.12.4-1.2ubuntu0.1~esm1"}]}]
References
- advisory https://ubuntu.com/security/notices/USN-8504-1
- report https://ubuntu.com/security/CVE-2026-46446
- report https://www.cve.org/CVERecord?id=CVE-2026-46446
- report https://github.com/Alinto/sogo/commit/1f7e5d2b2c2047c44a6a9e05f73c36491cb96d21
- report https://github.com/Alinto/sogo/pull/379/changes/1f7e5d2b2c2047c44a6a9e05f73c36491cb96d21
- report https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg2100131.html
- report https://www.sogo.nu/news/2026/sogo-v5127-released.html