Bug 2542873 (CVE-2026-88371) - CVE-2026-88371 zbar: zbar: Denial of Service via crafted Code 128 barcode input
Summary: CVE-2026-88371 zbar: zbar: Denial of Service via crafted Code 128 barcode input
Keywords:
Status: NEW
Alias: CVE-2026-88371
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: 2543002 2543003
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-28 22:52 UTC by OSIDB Bzimport
Modified: 2026-09-29 08:26 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-09-28 22:52:29 UTC 
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.
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