CVE-2026-13063

An authenticated user with standard read/write privileges can cause the mongod process to terminate due to an out-of-memory condition by sending a crafted aggregation command. MongoDB's libmongocrypt library insufficiently validates payload-supplied values, which can result in an excessively large memory allocation.

Database specific

{
    "cna_assigner": "mongodb",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/13xxx/CVE-2026-13063.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "8.2.0"
                },
                {
                    "fixed": "8.2.12"
                },
                {
                    "introduced": "8.3.0"
                },
                {
                    "fixed": "8.3.7"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ],
    "cwe_ids": [
        "CWE-190"
    ]
}

References

Affected packages

Git / github.com/mongodb/mongo

Affected ranges

Type

GIT

Repo

https://github.com/mongodb/mongo

Events

Introduced

b993867dce63dd366cd93e60f3f425ed716f6497

Fixed

10d50f5046de5c76a9d869823219134b3596905a

Introduced

0f29b043a58fdd251ce0a0b32754b8459613c933

Fixed

527067edda13efcac3d257b3cdb1c510c57b3c6e

Database specific

{
    "extracted_events": [
        {
            "introduced": "8.2.0"
        },
        {
            "fixed": "8.2.12"
        },
        {
            "introduced": "8.3.0"
        },
        {
            "fixed": "8.3.7"
        }
    ],
    "cpe": "cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*",
    "source": "CPE_RANGE"
}

Affected versions

r8.*

r8.2.0

r8.2.1

r8.2.1-rc0

r8.2.1-rc1

r8.2.10

r8.2.2

r8.2.2-rc0

r8.2.3-alpha0

r8.2.4-alpha0

r8.2.4-alpha1

r8.3.0

r8.3.3

Database specific

vanir_signatures

[
    {
        "signature_version": "v1",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "195283451325379709791176466181059330449",
                "11934503373533753673416013101293166641",
                "34761259574797342523983725962110135860",
                "6697845561671035843872382804131271398",
                "190799824288394015190372324041271803151"
            ]
        },
        "id": "CVE-2026-13063-18a7c7d6",
        "signature_type": "Line",
        "source": "https://github.com/mongodb/mongo/commit/10d50f5046de5c76a9d869823219134b3596905a",
        "target": {
            "file": "src/mongo/db/pipeline/javascript_execution.cpp"
        }
    },
    {
        "signature_version": "v1",
        "deprecated": false,
        "digest": {
            "length": 419.0,
            "function_hash": "139145742414386593281199011500928031122"
        },
        "id": "CVE-2026-13063-309120cf",
        "signature_type": "Function",
        "source": "https://github.com/mongodb/mongo/commit/10d50f5046de5c76a9d869823219134b3596905a",
        "target": {
            "function": "JsExecution::callFunction",
            "file": "src/mongo/db/pipeline/javascript_execution.cpp"
        }
    },
    {
        "signature_version": "v1",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "235349502426767986109171624443399362060",
                "332118117976299452680602889698335846937",
                "273414055616980281623380822972213976202",
                "260359270913691981069265618939534968152",
                "92760588891291927255272146911062451930",
                "131421526859279654507125979858138582212"
            ]
        },
        "id": "CVE-2026-13063-cb3d2fa4",
        "signature_type": "Line",
        "source": "https://github.com/mongodb/mongo/commit/10d50f5046de5c76a9d869823219134b3596905a",
        "target": {
            "file": "src/mongo/scripting/mozjs/objectwrapper.cpp"
        }
    },
    {
        "signature_version": "v1",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "39839291339635135228351456498984914983",
                "35727036334983502474101853618146564071",
                "152433407413412697966849125832082995516"
            ]
        },
        "id": "CVE-2026-13063-e13fbe7c",
        "signature_type": "Line",
        "source": "https://github.com/mongodb/mongo/commit/10d50f5046de5c76a9d869823219134b3596905a",
        "target": {
            "file": "src/mongo/db/pipeline/expression_javascript_test.cpp"
        }
    },
    {
        "signature_version": "v1",
        "deprecated": false,
        "digest": {
            "length": 1418.0,
            "function_hash": "284447201108016139902358258055612064237"
        },
        "id": "CVE-2026-13063-e30fe2e5",
        "signature_type": "Function",
        "source": "https://github.com/mongodb/mongo/commit/10d50f5046de5c76a9d869823219134b3596905a",
        "target": {
            "function": "ObjectWrapper::toBSON",
            "file": "src/mongo/scripting/mozjs/objectwrapper.cpp"
        }
    }
]

vanir_signatures_modified

"2026-08-07T08:11:10Z"

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-13063.json"