CVE-2026-82055

A security issue exists in MongoDB's 2dsphere index key generation that can cause a server crash due to a null pointer dereference. When a specially crafted GeoJSON document is inserted into a collection with a 2dsphere index, an inconsistency in geometry parsing can leave an internal object in an invalid, partially initialized state. During subsequent index key generation, access to this improperly initialized object results in a null pointer dereference that terminates the mongod process. An authenticated user with write access can use this to cause a denial of service.

Database specific

{
    "cna_assigner": "mongodb",
    "cwe_ids": [
        "CWE-476"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82055.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "8.3.0"
                },
                {
                    "fixed": "8.3.9"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}

References

Affected packages

Git / github.com/mongodb/mongo

Affected ranges

Type

GIT

Repo

https://github.com/mongodb/mongo

Events

Introduced

0f29b043a58fdd251ce0a0b32754b8459613c933

Fixed

1dc3d60c3237b53589325474c668e849ecec3bae

Database specific

Show details

{
    "cpe": "cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*",
    "extracted_events": [
        {
            "introduced": "8.3.0"
        },
        {
            "fixed": "8.3.9"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

r8.*

r8.3.0

r8.3.3

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82055.json"