Cybersecurity · 139 views
New 7-Zip Vulnerability Could Let Crafted XZ Archives Run Code During Extraction
CVE-2026-14266 is a high-severity heap overflow in 7-Zip’s XZ decoder that could run code when a user opens a crafted archive. Version 26.02 fixes it.
AI Summary
A heap‑based buffer overflow in 7‑Zip’s handling of XZ chunked data, identified as CVE‑2026‑14266, can allow an attacker to execute code when a crafted XZ archive is opened. Trend Micro’s Zero Day Initiative reported the flaw on July 15. The vulnerability was fixed in 7‑Zip version 26.02, which was released on June 25. Opening a malicious XZ file with an affected 7‑Zip installation could trigger arbitrary code execution on the host.
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