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    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() 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.

    Published:Oct 14, 2026
    Last Modified:Oct 20, 2026
    EPS:Oct 14, 2026
    EPSS Score:0.00172
    CVSS Score:5.5

    Affected Products

    Vendor
    Dlbeer
    Product
    Quirc

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-834 Excessive Iteration

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High