This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-110596 →
UBUNTU-CVE-2026-110596
quirc through 1.2 contains an excessive-iteration vulnerability in find_alignment_pattern() in lib/identify.c that allows attackers to hang quirc_end(...
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Ubuntu:26.10
quirc
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
References
- report ubuntu.com
- report cve.org
- report github.com
- report github.com
- report github.com
- report hackmd.io
- report vulncheck.com