CVE-2026-88371

zbar: ZBar commit 2ea2ca58 contains an undefined-behavior vulnerability in the Code 128 decode6() function

CVE-2026-88371 is fixed in zbar on 1 platform by DEBIAN-CVE-2026-88371 (version 0.23.95-1), released September 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.5
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0016
5th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
zbar · Debian 14 0.23.95-1 DEBIAN-CVE-2026-88371 Sep 24, 2026

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