Bug 2508503 (CVE-2026-14266) - CVE-2026-14266 7-Zip: 7-Zip: Remote Code Execution via XZ decompression heap-based buffer overflow
Summary: CVE-2026-14266 7-Zip: 7-Zip: Remote Code Execution via XZ decompression heap-...
Keywords:
Status: NEW
Alias: CVE-2026-14266
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2509211 2509212
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-29 18:01 UTC by OSIDB Bzimport
Modified: 2026-07-30 08:26 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-07-29 18:01:27 UTC 
7-Zip XZ Decompression Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the processing of XZ chunked data. Crafted XZ-compressed data can trigger an overflow of a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-30169.
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