CVE-2026-88371

MediumCVSS 5.5/10Last modified Oct 6, 2026

Description

ZBar commit 2ea2ca58 contains an undefined-behavior vulnerability in the Code 128 decode6() function. When processing specially crafted Code 128 input, decode_e() can return -1 for an invalid edge pattern, and decode6() subsequently left-shifts this negative signed value while constructing the edge signature. The operation invokes undefined behavior and can terminate trap-mode UBSan builds with SIGILL, resulting in denial of service.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-682

Affected software

No affected versions have been published.

Timeline

Published: Sep 24, 2026
Last modified: Oct 6, 2026
NVD status: Deferred

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