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    CVE-2025-14911

    User-controlled chunkSize metadata from MongoDB lacks appropriate validation allowing malformed GridFS metadata to overflow the bounding container.

    Published:Jan 27, 2026
    Last Modified:Apr 15, 2026
    EPS:Jan 27, 2026
    EPSS Score:0.00062
    CVSS Score:6.5

    Affected Products

    Vendor
    Mongodb
    Product
    C Driver

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-84963 (CVSS 6.3) — An incorrect numeric conversion in the JSON parsing component of the MongoDB C Driver's BSON library may cause…
    CVE-2026-84964 (CVSS 8.2) — A double free in the OpenSSL-based TLS certificate revocation checking path of the MongoDB C Driver can be rea…
    CVE-2026-84965 (CVSS 5.9) — An integer wraparound in an allocation size calculation in the BSON library's JSON parsing code can cause a bu…
    CVE-2026-84969 (CVSS 6.3) — A memory-handling error in the BSON-to-JSON conversion helpers of the MongoDB C Driver can write a small numbe…
    CVE-2026-81524 (CVSS 5.3) — A weakness in the MongoDB C Driver allows special elements in caller-supplied database and collection name com…
    CVE-2026-9100 (CVSS 6) — The MongoDB C Driver's legacy GridFS API accepts malformed file metadata from the database without adequate va…
    CVE-2026-6691 (CVSS 8.6) — The MongoDB C Driver's Cyrus SASL integration performs unsafe string copying during username canonicalization,…
    CVE-2026-6231 (CVSS 5.3) — The bson_validate function may return early on specific inputs and incorrectly report success. This behavior c…

    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