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CVE-2026-55673— PowSyBl: Command Injection in LocalCommandExecutor-s

Quick assessment

Affected
powsybl powsybl-core
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

以下是对该漏洞描述的中文翻译： PowSyBl（Power System Blocks） 是一个用于构建面向电力系统的软件框架。在 7.2.2 版本之前， 和 在通过 或 执行命令时，将命令参数和环境变量直接拼接为字符串，且未进行充分的转义处理。 如果攻击者控制的值传递至 、 、 、 、 或 / ，攻击者可能突破原本预期的命令执行范围，以 JVM 用户的身份执行任意 Shell 命令。 受影响的 itools 路径包括：带有 参数的 action-simulator、带有 参数的 security-analysis

CVSS 7.1 · High

Affected Version Matrix 1

VendorProduct Version RangeStatus
powsybl powsybl-core < 7.2.2 affected
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I. Basic Information for CVE-2026-55673

Vulnerability Information
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Vulnerability Title
PowSyBl: Command Injection in LocalCommandExecutor-s
Source: CVE Program / CVE List V5
Vulnerability Description
PowSyBl (Power System Blocks) is a framework to build power system oriented software. Prior to 7.2.2, UnixLocalCommandExecutor and WindowsLocalCommandExecutor concatenate command arguments and environment variables into strings interpreted through bash -c or cmd /c without sufficient escaping. Attacker-controlled values reaching UnixLocalCommandExecutor.execute, WindowsLocalCommandExecutor.execute, LocalComputationManager.execute, ParallelLoadFlowActionSimulator.run, ActionSimulatorTool.run, AmplModelRunner.run, or AmplModelRunner.runAsync can break out of the intended command and execute arbitrary shell commands as the JVM user. The affected itools paths include action-simulator with task-count, security-analysis with external, and dynamic-security-analysis. Downstream CLI tools, libraries, REST front ends, and multi-tenant grid-analysis services that forward less-trusted contingency identifiers or computation parameters into these APIs can expose the injection remotely. This issue is fixed in version 7.2.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
powsybl powsybl-core < 7.2.2 -

II. Public POCs for CVE-2026-55673

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III. Intelligence Information for CVE-2026-55673

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Patches & Fixes for CVE-2026-55673 (3)

Vendor Advisories for CVE-2026-55673 (1)

Vendor Pages for CVE-2026-55673 (1)

IV. Related Vulnerabilities

Same product: powsybl-core
Same vendor: powsybl
Same weakness: CWE-78

V. Comments for CVE-2026-55673

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