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CVE-2026-44691
high
CVSS 8.8
Vulnerability in @theia/debug (CVE-2026-44691)
Summary
vulnerability in @theia/debug (CVE-2026-44691). Successful exploitation can lead to full system takeover. Mitigation: upgrade to `1.69.0` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-44691** has been found in @theia/debug.
Successful exploitation can lead to full system takeover. CVSS score: 8.8/10.
What to do: upgrade @theia/debug to **1.69.0** or later.
If unsure, ask your IT team or search "@theia/debug CVE-2026-44691" on the vendor's site.
CVE-2026-44691 (@theia/debug) — CWE-829 / CVSS v3 8.8
Attack vector: remote (network-reachable) / unauthenticated
Patched: `1.69.0` — 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-829) exists in @theia/debug.
📍 Affected scope
@theia/debug — .
🔥 Severity
Severity: High (CVSS 8.8/10). Successful exploitation can lead to full system takeover
🔧 How to fix
Update to **1.69.0**.
🛡️ 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 '@theia/debug' .` 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 '@theia/debug' . | 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 `@theia/debug` 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 @theia/debug to 1.69.0ステージング環境で 1.69.0 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
npm
@theia/debug
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.69.0"}]}]
npm
@theia/task
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.69.0"}]}]
npm
@theia/workspace
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.69.0"}]}]
References
- patch [email protected]
- web https://nvd.nist.gov/vuln/detail/CVE-2026-44691
- web https://github.com/advisories/GHSA-g9jw-92q7-g7fj
- web https://github.com/eclipse-theia/theia/issues/16889
- web https://github.com/eclipse-theia/theia/pull/16917
- web https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/331