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CVE-2026-55673: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in powsybl powsybl-core

0
High
VulnerabilityCVE-2026-55673cvecve-2026-55673cwe-78cwe-88
Published: 08/28/2026 (08/28/2026, 18:36:53 UTC)
Source: CVE Database V5
Vendor/Project: powsybl
Product: powsybl-core

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.

CVSS v4.0

Score 7.1high

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Vuln. Confidentiality
None
Vuln. Integrity
Low
Vuln. Availability
High
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
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

Technical Details

Data Version
5.2
Assigner Short Name
GitHub_M
Date Reserved
2026-06-17T00:05:03.778Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a91e40eacd9273b4942e845

Added to database: 08/28/2026, 19:39:58 UTC

Last updated: 08/28/2026, 19:40:47 UTC

Views: 2

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