CVE-2026-55673Network attack vector

Authenticated command execution via unescaped executor inputs

Published Aug 28, 2026 · Updated Aug 28, 2026

OS command injection in PowSyBl Core before 7.2.2 allows remote authenticated users to run shell commands through computation APIs. UnixLocalCommandExecutor and WindowsLocalCommandExecutor concatenate arguments and environment values into strings interpreted by bash -c or cmd /c without sufficient escaping. Reachability requires a caller to forward less-trusted values into the listed APIs or itools paths; injected commands run with the JVM user's privileges.

CVSS severity7.1
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in PowSyBl Core before 7.2.2 allows remote authenticated users to run shell commands through computation APIs. UnixLocalCommandExecutor and WindowsLocalCommandExecutor concatenate arguments and environment values into strings interpreted by bash -c or cmd /c without sufficient escaping. Reachability requires a caller to forward less-trusted values into the listed APIs or itools paths; injected commands run with the JVM user's privileges.

The record

CVE
CVE-2026-55673
Published
Aug 28, 2026
Updated
Aug 28, 2026
Vendor
PowSyBl
Product
PowSyBl Core
Classifications
CWE-88, CWE-78, T1059.003, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 7.2.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

PowSyBl · PowSyBl Coreversion=< 7.2.2

Published CVSS scores

7.1GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-88Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.003Windows Command Shell
T1059.004Unix Shell

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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