CVE-2026-105050 Command injection in PeaZip

High 7.1 Published Updated

Attackers can execute arbitrary OS commands via crafted archive filenames in PeaZip when specific non-default settings are enabled.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-105050?

CVE-2026-105050 is a high-severity command injection vulnerability in PeaZip, published on 2 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

PeaZip before 11.3.0, in a non-default configuration, is vulnerable to OS command injection via a filename in an archive because "quotation character already used in the string" is mishandled.

Weakness: CWE-180

Which versions are affected by CVE-2026-105050?

How do I fix CVE-2026-105050?

No fix has been published for CVE-2026-105050 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-105050 being exploited?

There is no known exploitation of CVE-2026-105050 in the wild and no public exploit code.

Sources

Also known as GHSA-377g-778f-272q.

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