High 8.4

OS Command Injection in 389-ds-base

CVE-2026-19843 First seen on SecPulse Sep 8, 00:17

AI summary

Produced by SecPulse using an external AI model; it may contain mistakes. Check the original description and references below before acting on it.

A vulnerability tracked as CVE-2026-19843 has been found in 389-ds-base.
Successful exploitation can lead to full system takeover. CVSS score: 8.4/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "389-ds-base CVE-2026-19843" on the vendor's site.

CVE-2026-19843 (389-ds-base) — CWE-78 / CVSS v3 8.4
Attack vector: remote (network-reachable)
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

OS command injection (CWE-78) exists in 389-ds-base.

Affected scope

Check the vendor advisory for the affected versions of 389-ds-base.

Severity

Severity: High (CVSS 8.4/10). Successful exploitation can lead to full system takeover.

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 request patterns matching this CVE's known IOCs. Run grep -r '389-ds-base' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

1
Identify exposureidentify
```
grep -r '389-ds-base' . | 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 389-ds-base を grep し、稼働しているサービス・バージョンを把握する。
2
Post-deployment verificationverify
```
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。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Fix status by distribution

Records published by each distribution for this CVE. Fixed versions differ by release; check each link.

Debian DEBIAN-CVE-2026-19843 389-ds-base No fixed version in this record
Ubuntu UBUNTU-CVE-2026-19843 389-ds-base No fixed version in this record

Original description The description as published by the source.

A flaw was found in 389-ds-base. The Cockpit 389 Console's LDAP editor constructs an ldapsearch command by embedding an LDAP entry's distinguished name (DN) into a shell command string without proper escaping. An LDAP user with delegated privileges to create or rename directory entries could craft a malicious DN containing shell metacharacters. When a Cockpit administrator subsequently views the entry in the 389 Console, the embedded shell command executes with root privileges on the directory server host.

Source: NIST National Vulnerability Database NVD GitHub Advisory

AI summary

Response actions

Fix status by distribution

References