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    1 vulnerability by openmcdf

    CVE-2026-41511 (GCVE-0-2026-41511)

    Vulnerability from cvelistv5 – Published: 2026-05-08 18:52 – Updated: 2026-05-11 18:45
    VLAI
    Title
    OpenMcdf has an Infinite loop DoS via crafted CFB directory cycle
    Summary
    OpenMcdf is a fully .NET / C# library to manipulate Compound File Binary File Format files, also known as Structured Storage. Prior to version 3.1.3, OpenMcdf does not detect cycles in the directory entry red-black tree of a Compound File Binary (CFB) document. A crafted CFB file with a cycle in the LeftSiblingID / RightSiblingID chain causes Storage.EnumerateEntries() and Storage.OpenStream() to loop indefinitely, consuming the calling thread with no possibility of recovery via try/catch. This issue has been patched in version 3.1.3.
    Severity
    6.2 (Medium)
    CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
    Assigner
    References
    Impacted products
    Vendor Product Version
    ironfede openmcdf Affected: < 3.1.3
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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