CVE-2026-82056

    Dashboard / Vulnerabilities / CVE-2026-82056

    CVE-2026-82056

    Published: 8 Sept 2026Last Modified: 18 Sept 2026

    Summary: Race Condition in MongoDB Server Text Index Query Parsing Leads to Heap Use-After-Free and Denial of Service

    Details: A race condition in MongoDB server's text index query parsing can cause a heap use-after-free read when handling upsert retry paths. Under certain concurrent index lifecycle operations, a raw pointer to internal text index metadata may be dereferenced after the underlying structures have been freed, leading to a server crash. An authenticated user with readWrite privileges can trigger this condition through specific concurrent text-search and index management operations, resulting in denial of service for all connected clients. This

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 37d84072b5c5b9fd723db5fa133fb202ad2317f1

    Affected versions

    r7.0.35
    r7.0.27-rc0
    r7.0.27
    r7.0.27-alpha0
    r7.0.26-rc0
    r7.0.26
    r7.0.24-rc0
    r7.0.24
    r7.0.25-alpha0
    r7.0.23-rc1
    r7.0.23
    r7.0.23-rc0
    r7.0.22-rc0
    r7.0.22
    r7.0.21-rc0
    r7.0.21
    r7.0.21-alpha0
    r7.0.18
    r7.0.17
    r7.0.16-rc1
    r7.0.16-rc0
    r7.0.16
    r7.0.15
    r7.0.15-rc1
    r7.0.15-rc0
    r7.0.14-rc0
    r7.0.14
    r7.0.13-rc1
    r7.0.13
    r7.0.13-rc0
    r7.0.12-rc1
    r7.0.12
    r7.0.12-rc0
    r7.0.11-rc2
    r7.0.11
    r7.0.11-rc1
    r7.0.11-rc0
    r7.0.10-rc0
    r7.0.10
    r7.0.9-rc1
    r7.0.9
    r7.0.9-rc0
    r7.0.8-rc0
    r7.0.8
    r7.0.7-rc2
    r7.0.7
    r7.0.7-rc1
    r7.0.7-rc0
    r7.0.6-rc0
    r7.0.6
    r7.0.5-rc0
    r7.0.5
    r7.0.4-rc0
    r7.0.4
    r7.0.3-rc1
    r7.0.3
    r7.0.3-rc0
    r7.0.2-rc2
    r7.0.2
    r7.0.2-rc1
    r7.0.2-rc0
    r7.0.1-rc0
    r7.0.1
    r7.0.0

    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
    CVE-2026-82056 | CVE-DB