CVE-2026-90926
Deferred Deferred - Pending Action

Code Injection in Logsign SIEM

Publication date: 2026-09-28

Last updated on: 2026-09-28

Assigner: Computer Emergency Response Team of the Republic of Turkey

Description
Improper Control of Generation of Code ('Code Injection') vulnerability in Innotim Software, Telecommunications and Consultancy Trade Ltd. Co. Logsign SIEM allows Code Injection. This issue affects Logsign SIEM: from 6.4.101 before 6.4.117.

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Meta Information

Published
2026-09-28
Last Modified
2026-09-28
Generated
2026-09-28
AI Q&A
2026-09-28
EPSS Evaluated
N/A
NVD
CVE-2026-90926
EUVD
EUVD-2026-88290

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
innotim_software logsign_siem From 6.4.101 (inc) to 6.4.117 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-94 The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

Attack-Flow Graph

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Executive Summary

This is a code injection vulnerability in Logsign SIEM software versions 6.4.101 to 6.4.117. It allows attackers to inject malicious code into the system due to improper input validation.

Detection Guidance

This vulnerability involves code injection in Logsign SIEM versions 6.4.101 to 6.4.117. Detection requires checking for unauthorized code execution or suspicious activity in SIEM logs. Review logs for unexpected commands or scripts, especially in input fields. Monitor network traffic for unusual outbound connections from the SIEM server.

Impact Analysis

An attacker could exploit this to execute arbitrary commands on the system, potentially leading to data theft, system compromise, or unauthorized access. The high CVSS score indicates significant risk.

Compliance Impact

This vulnerability could lead to unauthorized data access or breaches, which may violate GDPR (data protection) and HIPAA (health data security) requirements. Organizations must patch to maintain compliance.

Mitigation Strategies

Update Logsign SIEM to version 6.4.117 or later to address the code injection vulnerability. Ensure all instances are patched as this issue affects versions from 6.4.101 before 6.4.117.

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