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Advisory record · GHSA-jqvf-j3ww-r8c7

PowSyBl Core has Command Injection in LocalCommandExecutor-s

CVSS 7.1 HighEPSS 0.0060 · 49th percentile

Published by the GitHub Advisory Database at 28 Aug 2026, 18:37 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
com.powsybl:powsybl-computation-localMaven<7.2.27.2.2
Identifiers
GHSA-jqvf-j3ww-r8c7 · CVE-2026-55673
Weakness (CWE)
CWE-78 · CWE-88
Tags
Published
28 Aug 2026
Updated
28 Aug 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

PowSyBl Core's powsybl-computation-local Maven package, versions before 7.2.2, has an OS command injection flaw in its local command executors. An attacker who can influence string arguments or environment variable values passed to these APIs can run arbitrary shell commands as the JVM user. Upgrade powsybl-computation-local to 7.2.2 or later. If upgrading is not possible, validate user-supplied arguments and reject shell metacharacters before calling the affected methods.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.1 High 4.0 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 CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0060, the 49th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:19 UTC First seen by agentprime
  2. 31 Oct 2026, 14:19 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.