CVE-2026-105050: PeaZip command injection via archive filename in non-default configuration

CVE-2026-105050 · Severity: info · Published 2026-10-02

PeaZip is a file archiver and extractor used to manage compressed files. In a non-default configuration, an attacker can inject arbitrary operating system commands by crafting archive entries with specially manipulated filenames containing quotation characters, potentially allowing remote code execution when extracting untrusted archives.

Technologies: PeaZip. Vendors: PeaZip.

Quick answers

Is CVE-2026-105050 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-105050 being exploited in the wild.
How severe is CVE-2026-105050?
Informational severity, published 2 October 2026.
Which products and versions are affected?
PeaZip before 11.3.0.
Is there a fix for CVE-2026-105050?
Yes: fixed in 11.3.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-105050 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-105050?
Check whether you run PeaZip at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: 11.3.0

Technical details

PeaZip before 11.3.0 fails to properly sanitize quotation characters in archive filenames when constructing shell commands, leading to OS command injection. The vulnerability occurs in a non-default configuration where filename processing mishandles already-used quotation marks. An attacker can exploit this by creating a malicious archive with crafted filenames that break out of intended command quotes and inject arbitrary commands.

Affected products

  • PeaZip PeaZip before 11.3.0

Timeline

  • 2026-10-02: disclosed
  • 2026-09-03: patched

References

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