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Advisory record · GHSA-f5cx-h789-j959

PowSyBl Core allows deserialization of untrusted SparseMatrix data

CVSS 8.1 HighEPSS 0.0052 · 44th percentile

Published by the GitHub Advisory Database at 19 Jun 2025, 16:19 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
com.powsybl:powsybl-mathMaven>=6.3.0, <6.7.26.7.2
Identifiers
GHSA-f5cx-h789-j959 · CVE-2025-47771
Weakness (CWE)
CWE-502
Tags
Published
19 Jun 2025
Updated
20 Jun 2025

Machine-written summary

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

PowSyBl Core's powsybl-math package (Maven com.powsybl:powsybl-math) versions 6.3.0 up to but not including 6.7.2 is vulnerable to unsafe deserialization in the SparseMatrix.read method. An attacker who can supply serialized SparseMatrix data through an InputStream, such as a user of a multi-tenant application or an external source feeding a local tool, could escalate privileges. Upgrade to powsybl-math 6.7.2 or later; until then, avoid using SparseMatrix.read to deserialize data.

Written 7 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
8.1 High 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0052, the 44th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:10 UTC First seen by agentprime
  2. 31 Oct 2026, 15:10 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.