CVE-2026-110596

MediumCVSS 5.5/10Last modified Oct 20, 2026

Description

quirc through 1.2 contains an excessive-iteration vulnerability in find_alignment_pattern() in lib/identify.c that allows attackers to hang quirc_end() with a crafted image. Attackers can arrange three finder patterns producing a near-degenerate perspective transform, causing billions of region_code() iterations that exhaust CPU in applications decoding attacker-supplied QR images.

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-834

Affected software

Vendor	Product	Versions
dlbeer	quirc	<= 1.2

References

Timeline

Published: Oct 14, 2026
Last modified: Oct 20, 2026
NVD status: Deferred

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