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CVE-2026-90926: Logsign SIEM can be tricked into running malicious code

CVE-2026-90926 · published 1 month ago

Summary

Versions of Logsign SIEM before 6.4.117 let an attacker insert their own code into the system. This could let the attacker run unauthorized commands or access data. Upgrade to version 6.4.117 or later, or apply the vendor's patch, to stop the risk.

What to do

Update innotim software, telecommunications and consultancy trade ltd. co. logsign siem to version 6.4.117 or later.

Affected software

Vendor	Product	Affected versions
innotim software, telecommunications and consultancy trade ltd. co.	logsign siem	< 6.4.117

Original advisory text

Code Injection in Innotim Software's Logsign SIEM

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.

References

https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1202

Fix within

Internet-facing 14 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit
Gives an attacker full control

Severity

8.8 High

Exploitation

<1% chance of attack within 30 days

Type

CWE-94Code Injection

Timeline

Published28 Sep 2026

Updated3 Nov 2026

First seen28 Sep 2026

Sources

CVE-2026-90926 · NVD

CVE-2026-90926 · MITRE

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