CVE-2026-84964

Source
https://cve.org/CVERecord?id=CVE-2026-84964
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-84964.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-84964
Downstream
Related
Published
2026-09-03T15:02:20Z
Modified
2026-09-24T03:46:53Z
Severity
  • 8.2 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Heap corruption via OCSP request double free from crafted multi-URL certificate in TLS client
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.

Database specific
{
    "cna_assigner":  "mongodb",
    "cwe_ids":  [
        "CWE-415"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/84xxx/CVE-2026-84964.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "introduced":  "1.17.0"
                },
                {
                    "fixed":  "1.30.9"
                },
                {
                    "introduced":  "2.0.0"
                },
                {
                    "fixed":  "2.5.2"
                }
            ],
            "source":  "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/mongodb/mongo-c-driver

Affected ranges

Type
GIT
Repo
https://github.com/mongodb/mongo-c-driver
Events
Database specific
Show details
{
    "cpe":  "cpe:2.3:a:mongodb:c_driver:*:*:*:*:*:mongodb:*:*",
    "extracted_events":  [
        {
            "introduced":  "1.17.0"
        },
        {
            "fixed":  "1.30.9"
        },
        {
            "introduced":  "2.0.0"
        },
        {
            "fixed":  "2.5.2"
        }
    ],
    "source":  "CPE_RANGE"
}

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-84964.json"