DEBIAN-CVE-2026-84964

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    DEBIAN-CVE-2026-84964

    Published: 3 Sept 2026Last Modified: 23 Sept 2026
    Upstream:
    CVE-2026-84964

    Summary:

    Details: A double free in the OpenSSL-based TLS certificate revocation checking path of the MongoDB C Driver can be reached by a TLS endpoint that the client already trusts. During the handshake, specially formed certificate data can cause the same heap object to be released twice. An unauthenticated party acting as the trusted endpoint may cause the connecting client application to terminate unexpectedly.

    References: https://security-tracker.debian.org/tracker/CVE-2026-84964

    Affected packages

    Package

    Name: mongo-c-driver

    Purl: pkg:deb/debian/mongo-c-driver?arch=source&distro=bookworm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1.23.1-1
    1.23.1-1+deb12u1
    1.23.1-1+deb12u2
    1.23.1-1+deb12u3

    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
    DEBIAN-CVE-2026-84964 | CVE-DB