GHSA-fjm5-xm8f-3gjjMediumCVSS 5.5
quirc through 1.2 contains an excessive-iteration vulnerability in find_alignment_pattern() in...
🔗 CVE IDs covered (1)
📋 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.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-110596
- https://github.com/dlbeer/quirc/issues/162
- https://github.com/dlbeer/quirc/pull/159
- https://github.com/dlbeer/quirc/blob/542848dd6b9b0eaa9587bbf25b9bc67bd8a71fca/lib/identify.c#L578-L636
- https://hackmd.io/@haind-pwn/quirc-alignment-pattern-infinite-loop-dos
- https://www.vulncheck.com/advisories/quirc-through-1.2-denial-of-service-via-find-alignment-pattern-spiral-search
- https://github.com/advisories/GHSA-fjm5-xm8f-3gjj