Sign in Sign up
JA · EN · FR
SecPulse
Categories
CVE-2026-55673

OS Command Injection in com.powsybl:powsybl-computation-local (CVE-2026-55673)

Summary

OS command injection in com.powsybl:powsybl-computation-local (CVE-2026-55673). Risk of unauthorized operations or information disclosure. Exploitable via AbstractLocalCommandExecutor. Mitigation: upgrade to 7.2.2 or later.

Original description

The description as published by the source.

Impact

Description

Both AbstractLocalCommandExecutor OS-dependent implementations are subject to CWE-78 (OS Command Injection), with a secondary CWE-88 (Argument Injection) concern via environment variables.

The local command executor build command strings via concatenation and executes them (through bash -c for Unix, or cmd /c for Windows). Any string argument or environment variable value reaching this executor can break out of the intended command and execute arbitrary shell code as the JVM user.

The sink is reachable through public APIs that accept List arguments without any documented indication that elements undergo shell interpretation.

Any caller — CLI, library integration, or embedding service — that forwards data from a less-trusted source into these APIs inherits the vulnerability.

Vulnerable elements

The vulnerable elements are:

  • Public methods:
    • UnixLocalCommandExecutor.execute(...)
    • WindowsLocalCommandExecutor.execute(...)
    • LocalComputationManager.execute(...)
    • ParallelLoadFlowActionSimulator.run(...)
    • ActionSimulatorTool.run(...)
    • AmplModelRunner.run(...)
    • AmplModelRunner.runAsync(...)
  • itools commands:
    • action-simulator, when the task-count option is defined
    • security-analysis, when the external option is defined
    • dynamic-security-analysis

Characteristics

The vulnerability characteristics are the following:

  • It allows arbitrary shell command execution as…

Source: GitHub Security Advisories (Global) NVD GitHub Advisory

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2026-55673 has been found in com.powsybl:powsybl-computation-local.
Attackers can target a specific entry point like AbstractLocalCommandExecutor over the network to misuse the product.
Risk of unauthorized operations or information disclosure.
What to do: upgrade com.powsybl:powsybl-computation-local to 7.2.2 or later.
If unsure, ask your IT team or search "com.powsybl:powsybl-computation-local CVE-2026-55673" on the vendor's site.

CVE-2026-55673 (com.powsybl:powsybl-computation-local) — CWE-78
Attack surface: AbstractLocalCommandExecutor / external / args
Patched: 7.2.2 — 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

OS command injection (CWE-78) exists in com.powsybl:powsybl-computation-local. Attackers reach the vulnerable code path via AbstractLocalCommandExecutor.

📍 Affected scope

Check the vendor advisory for the affected versions of com.powsybl:powsybl-computation-local. Attack surface: AbstractLocalCommandExecutor / external / args.

🔥 Severity

Severity: ?. Risk of unauthorized operations or information disclosure.

🔧 How to fix

Update to 7.2.2.

🛡️ 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. Audit SBOM/dependencies to find affected services.

Response actions

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

  1. 1
    Identify exposure identify 
    Audit SBOM/dependencies for affected components.

    資産台帳・SBOM・依存マニフェストで com.powsybl:powsybl-computation-local を使っているサービスとバージョンを洗い出す。

  2. 2
    Apply patch patch 
    Upgrade com.powsybl:powsybl-computation-local to 7.2.2

    ステージング環境で 7.2.2 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を含めること。

  3. 3
    Post-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。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

maven com.powsybl:powsybl-computation-local
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.2.2"}]}]

References

We use cookies for analytics and ad measurement. This setting applies to all Game co., Ltd. sites. Details